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METROLINK COMMEMORATES CALIFORNIA CLEAN AIR DAY WITH FREE RIDES SYSTEMWIDE
LA Metro and a number of other regional transportation agencies will also waive fares Oct. 4, and Metrolink riders can connect at no cost to a variety of additional local transit options with their free round-trip ticket.
Employees combat air pollution by taking part in “smog-eating” mural painting at UC Riverside
LOS ANGELES – To encourage Southern Californians to leave their vehicles at home and opt for a more sustainable alternative, Metrolink offered free rides across its entire system Wednesday for California Clean Air Day. LA Metro and a number of other regional transportation agencies will also waive fares Oct. 4, and Metrolink riders can connect at no cost to a variety of additional local transit options with their free round-trip ticket.
“Taking cars off the road is one of the best and easiest ways to combat air pollution, and we’re proud to offer Southern Californians an alternate method of transportation they can feel good about,” said Metrolink CEO Darren Kettle. “Metrolink trains use renewable, petroleum-free fuel made from recycled natural oils, and we were the first passenger railroad in the nation to make this transition, which reduces greenhouse gas emissions by up to 80%. Offering free rides on California Clean Air Day is just one of the ways we’re working to create cleaner, healthier communities across the region.”
In addition to providing free rides on Oct. 4, Metrolink has engaged in education and community development activities to help spread the California Clean Air Day message. In partnership with the City of Riverside’s Department of Arts and Cultural Affairs and UC Riverside’s Office of Sustainability, Metrolink team members gathered Tuesday to paint a smog-eating mural at UCR’s R’Garden. Working with UCR students, California Air Resources Board staff and community volunteers, the group brought to life an original work by local artist Ekaterina Orlovie using an air-purifying paint additive from manufacturer Photio that will actively clean the air around the mural. Metrolink also partnered with Los Angeles-based nonprofit Create Now to support a free multi-themed art program focused on teaching youth about air quality and environmentally healthy steps Californians can take to support clean air initiatives and improve public health.
Southern Californians who are ready to answer the call and leave their cars at home on Oct. 4 in honor of California Clean Air Day can redeem their free roundtrip ticket at any Metrolink ticket machine using the promo code “CLEANAIR23.” A complimentary digital ticket was automatically sent to registered Metrolink mobile app user wallets, which must be activated before boarding.
Source: Metrolink
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I’m an astronomer and I think aliens may be out there – but UFO sightings aren’t persuasive
Surveys indicate that nearly half of Americans believe in UFOs and alien visits, despite scientists claiming these views lack substantial evidence and can often be explained by mundane phenomena.
Chris Impey, University of Arizona
If intelligent aliens visit the Earth, it would be one of the most profound events in human history.
Surveys show that nearly half of Americans believe that aliens have visited the Earth, either in the ancient past or recently. That percentage has been increasing. Belief in alien visitation is greater than belief that Bigfoot is a real creature, but less than belief that places can be haunted by spirits.
Scientists dismiss these beliefs as not representing real physical phenomena. They don’t deny the existence of intelligent aliens. But they set a high bar for proof that we’ve been visited by creatures from another star system. As Carl Sagan said, “Extraordinary claims require extraordinary evidence.”
I’m a professor of astronomy who has written extensively on the search for life in the universe. I also teach a free online class on astrobiology. Full disclosure: I have not personally seen a UFO.
Unidentified flying objects
UFO means unidentified flying object. Nothing more, nothing less.
There’s a long history of UFO sightings. Air Force studies of UFOs have been going on since the 1940s. In the United States, “ground zero” for UFOs occurred in 1947 in Roswell, New Mexico. The fact that the Roswell incident was soon explained as the crash landing of a military high-altitude balloon didn’t stem a tide of new sightings. The majority of UFOs appear to people in the United States. It’s curious that Asia and Africa have so few sightings despite their large populations, and even more surprising that the sightings stop at the Canadian and Mexican borders.
Most UFOs have mundane explanations. Over half can be attributed to meteors, fireballs and the planet Venus. Such bright objects are familiar to astronomers but are often not recognized by members of the public. Reports of visits from UFOs inexplicably peaked about six years ago.
Many people who say they have seen UFOs are either dog walkers or smokers. Why? Because they’re outside the most. Sightings concentrate in evening hours, particularly on Fridays, when many people are relaxing with one or more drinks.
A few people, like former NASA employee James Oberg, have the fortitude to track down and find conventional explanations for decades of UFO sightings. Most astronomers find the hypothesis of alien visits implausible, so they concentrate their energy on the exciting scientific search for life beyond the Earth. https://www.youtube.com/embed/lAopNJMbFEI?wmode=transparent&start=0 Most UFO sightings have been in the United States.
Are we alone?
While UFOs continue to swirl in the popular culture, scientists are trying to answer the big question that is raised by UFOs: Are we alone?
Astronomers have discovered over 4,000 exoplanets, or planets orbiting other stars, a number that doubles every two years. Some of these exoplanets are considered habitable, since they are close to the Earth’s mass and at the right distance from their stars to have water on their surfaces. The nearest of these habitable planets are less than 20 light years away, in our cosmic “back yard.” Extrapolating from these results leads to a projection of 300 million habitable worlds in our galaxy. Each of these Earth-like planets is a potential biological experiment, and there have been billions of years since they formed for life to develop and for intelligence and technology to emerge.
Astronomers are very confident there is life beyond the Earth. As astronomer and ace exoplanet-hunter Geoff Marcy, puts it, “The universe is apparently bulging at the seams with the ingredients of biology.” There are many steps in the progression from Earths with suitable conditions for life to intelligent aliens hopping from star to star. Astronomers use the Drake Equation to estimate the number of technological alien civilizations in our galaxy. There are many uncertainties in the Drake Equation, but interpreting it in the light of recent exoplanet discoveries makes it very unlikely that we are the only, or the first, advanced civilization.
This confidence has fueled an active search for intelligent life, which has been unsuccessful so far. So researchers have recast the question “Are we alone?” to “Where are they?”
The absence of evidence for intelligent aliens is called the Fermi Paradox. Even if intelligent aliens do exist, there are a number of reasons why we might not have found them and they might not have found us. Scientists do not discount the idea of aliens. But they aren’t convinced by the evidence to date because it is unreliable, or because there are so many other more mundane explanations.
Modern myth and religion
UFOs are part of the landscape of conspiracy theories, including accounts of abduction by aliens and crop circles created by aliens. I remain skeptical that intelligent beings with vastly superior technology would travel trillion of miles just to press down our wheat.
It’s useful to consider UFOs as a cultural phenomenon. Diana Pasulka, a professor at the University of North Carolina, notes that myths and religions are both means for dealing with unimaginable experiences. To my mind, UFOs have become a kind of new American religion.
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So no, I don’t think belief in UFOs is crazy, because some flying objects are unidentified, and the existence of intelligent aliens is scientifically plausible.
But a study of young adults did find that UFO belief is associated with schizotypal personality, a tendency toward social anxiety, paranoid ideas and transient psychosis. If you believe in UFOs, you might look at what other unconventional beliefs you have.
I’m not signing on to the UFO “religion,” so call me an agnostic. I recall the aphorism popularized by Carl Sagan, “It pays to keep an open mind, but not so open your brains fall out.”
Chris Impey, University Distinguished Professor of Astronomy, University of Arizona
This article is republished from The Conversation under a Creative Commons license. Read the original article.
The science section of our news blog STM Daily News provides readers with captivating and up-to-date information on the latest scientific discoveries, breakthroughs, and innovations across various fields. We offer engaging and accessible content, ensuring that readers with different levels of scientific knowledge can stay informed. Whether it’s exploring advancements in medicine, astronomy, technology, or environmental sciences, our science section strives to shed light on the intriguing world of scientific exploration and its profound impact on our daily lives. From thought-provoking articles to informative interviews with experts in the field, STM Daily News Science offers a harmonious blend of factual reporting, analysis, and exploration, making it a go-to source for science enthusiasts and curious minds alike. https://stmdailynews.com/category/science/
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Why Israel and Hezbollah reached a ceasefire now − and what it means for Israel, Lebanon, Biden and Trump
Asher Kaufman, University of Notre Dame
Israel and the Lebanese militant group Hezbollah entered a 60-day ceasefire on Nov. 26, 2024, a move aimed at reducing tensions in the region more than a year into a multifront conflict.
Under the terms of the deal, Israel would gradually withdraw its forces from Lebanon, and Hezbollah would fully withdraw north of the Litani River. Meanwhile, the Lebanese Army would “deploy and take control over their own territory,” U.S. President Joe Biden said, adding that the United States, France and other allies have pledged to support the deal.
But what does the deal mean for the parties involved and future prospects for a more permanent cessation of hostilities? The Conversation U.S. turned to Asher Kaufman, an expert of Lebanon and border conflicts in the Middle East, to explain why they reached a ceasefire now and what it means going forward.
Why is the ceasefire deal happening now?
The timing of this ceasefire is the result of a convergence of interests among the government in Israel, Hezbollah itself and that of its chief sponsor, Iran – but all for different reasons.
For the Israeli government, domestic issues are at play. First off, the Israel Defense Forces (IDF) are exhausted after more than a year of war. This is particularly true for Israeli reservists, a growing number of whom are not turning up for duty. The Israeli general public, too, is tired of conflict, and a majority favors a ceasefire with Hezbollah.
Israeli Prime Minister Benjamin Netanyahu also has internal issues in his government to contend with. He is facing pressure from the ruling coalition’s ultra-Orthodox partners to draw up laws exempting ultra-Orthodox Jews from the military draft.
Reducing the need for active personnel by quieting the front with Lebanon will help in that regard. The secular and national-religious sectors of the society who do serve in the IDF and who are upset with the possibility of a formal draft-exemption law for ultra-Orthodox men may be more inclined to swallow this pill if the war with Hezbollah is over.
From the Israeli army’s perspective, the war in Lebanon is coming to a point of diminishing returns. It has succeeded in weakening Hezbollah’s military standing but has been unable to wipe the militant group out entirely.
This also factors into Hezbollah’s thinking. The group has been seriously debilitated in Lebanon; the war has eroded its military capabilities. Unlike its previous position – reiterated time and again over the past year by its now-dead leader, Hassan Nasrallah – that a ceasefire would only be possible if first it is reached between Hamas and Israel in Gaza, Hezbollah and, by extension, Iran are now willing to delink the two fronts. This leaves Hamas in a far weaker position as they are now left without the support of Iran’s main proxy “axis of resistance” group. Drawing Hezbollah, and other aligned groups in the region, into direct confrontation with Israel had been Hamas’ hope when it launched its attack on Israel on Oct. 7, 2023.
Hezbollah and Lebanon’s other political factions also have strong domestic pressures to contend with. Lebanon has more than 1 million refugees as a result of the conflict – the vast majority of them Shia, the branch of Islam that Hezbollah is drawn from. The conditions in Lebanon have increased the risk of sectarian fighting between Shia and others factions in the country. For Hezbollah leaders, the time may seem right to cut their losses and prepare to regroup as a political and military body.
Iran, too, is seeking to rehabilitate Hezbollah’s standing in Lebanon as soon as possible. The deal comes as Tehran is bracing for a U.S. administration that could have a more hawkish position on Iran and its proxies in the region, of which Hezbollah is the most significant. With a new Iranian president, and a new U.S. administration, a ceasefire between Iran’s main proxy and Israel may be a first step to Tehran building a constructive dialogue with a Trump White House.
What is the role of the US in the ceasefire?
What is interesting for me is that despite the very clear position of the U.S. in favoring Israel during the past year of conflict, it still functions as an effective mediator. It is thanks to the U.S. that there is a ceasefire – and it comes despite the fact that Washington is far from neutral in this conflict, being a chief ally of Israel and its main provider of weapons.
But the Lebanese government and Hezbollah see a U.S. role, too. And this is not new. The United States was the mediator in the 2022 landmark agreement that, for the first time, set out the maritime boundaries between Israel and Lebanon.
The ceasefire deal benefits both the outgoing and incoming U.S. administrations. For President Joe Biden, it would represent a diplomatic success after a year in which the U.S. has failed to mediate any breakthrough in the conflict in Gaza, and it is an opportunity for Biden to finish his presidency on a positive foreign policy note. From the perspective of Trump, the ceasefire in Lebanon will represent one less problem for him to face.
What might be the consequences for Lebanon and Israel?
Lebanon has the most at stake in this ceasefire holding. The country was already in a perilous economic situation before the war, and months of fighting has only worsened the structural, economic and political crises in the country. It is as dire as it can get.
Further, the war has reignited sectarian tension in Lebanon – talk of a return to civil war in the country is not far-fetched.
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But there is uncertainty over how the ceasefire will affect the various rival factions in Lebanese society. Hezbollah has been weakened and may well now look for a way to reassert its strength in Lebanon’s politics. The main question is how the other factions and parties respond to that.
With a weak Hezbollah, other factions may challenge the militant organization in ways they haven’t before. Before being decimated by Israel, there were no rival groups in a position to challenge Hezbollah in Lebanon. But that has all changed: Hezbollah’s military power has been degraded and Nasrallah, the group’s leader, killed. And Nasrallah was not just the face and brains of Hezbollah, he was also the group’s most important link to Iran.
There is concern among some Lebanon experts that the gap left by a weakened Hezbollah may see a struggle for power and further strife in the country. And I believe there should be no illusions that Hezbollah will try to reassert itself as a domestic force.
Complicating matters is the fact that any realignment of political forces in Lebanon comes amid a political vacuum. There has been a caretaker government – and no president – for two years now since Hezbollah conditioned the appointment of a new president with the candidate being an ally of the group. Now, Lebanese politicians would need to agree on a new president who in turn would appoint a new prime minister and government. It remains to be seen how this will unfold with a weakened Hezbollah.
For Israel, the ceasefire will provide an opportunity to reconstruct parts of the north that have been devastated by Hezbollah missiles and a possible return of the 60,000 Israelis who fled northern areas close to the Lebanon border. It will also allow the Israel Defense Forces to regroup, refresh and focus their resources in Gaza, rather than fighting on two fronts.
Could the ceasefire lead to a permanent peace deal?
I don’t see any permanent peace deal on the horizon, given the fact that the fundamental political goals of Israel, Hezbollah and Iran have not changed and that the Israel-Palestine conflict continues to fester.
But I am hopeful that the ceasefire could lead to calm and stability between Israel and Lebanon for the foreseeable future. The details of the ceasefire agreement are not very different from U.N. Resolution 1701 that ended the last major war between Israel and Hezbollah in 2006. That agreement brought relative calm to the region for 18 years, even if Hezbollah, supported by Iran, used these years to build up its military capability and prepare for a potential ground invasion of northern Israel.
In my view, there is a possibility for greater stability this time around given the fact that the ceasefire agreement also stipulates that, if and when it becomes permanent, the deal would serve as a basis for negotiations over the demarcation of the Israel-Lebanon territorial boundary. This would not be an easy task, particularly in the area of Shebaa Farms and the village of Ghajar. But with goodwill and good intentions, even difficult border disputes could be resolved.
Asher Kaufman, Professor of History and Peace Studies, University of Notre Dame
This article is republished from The Conversation under a Creative Commons license. Read the original article.
STM Daily News is a vibrant news blog dedicated to sharing the brighter side of human experiences. Emphasizing positive, uplifting stories, the site focuses on delivering inspiring, informative, and well-researched content. With a commitment to accurate, fair, and responsible journalism, STM Daily News aims to foster a community of readers passionate about positive change and engaged in meaningful conversations. Join the movement and explore stories that celebrate the positive impacts shaping our world.
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UN climate negotiations end on shaky geopolitical ground, but I see reasons for hope
Shannon Gibson, USC Dornsife College of Letters, Arts and Sciences
The 2024 United Nations climate talks wrapped up two days late, with an ending fitting that of a geopolitical reality TV show, complete with walkouts and recriminations.
Countries agreed on a new climate finance target on Nov. 24, 2024, promising to provide at least US$300 billion annually by 2035 to help developing countries build clean energy systems. But it was far less than the $1.3 trillion vulnerable countries were calling for.
The conference also delayed a debate over how to move forward on a 2023 agreement for all countries to contribute to “transitioning away from fossil fuels” and to submit climate pledges aligned with the 1.5C limit.
Some people may be ready to write the epitaph for global progress against climate change. But as someone who teaches global environmental politics and has followed international climate talks for years, I see both practical and moral reasons to remain hopeful.
The battle to keep the 1.5 C goal alive
In 2015, the world’s nations agreed as part of the Paris climate accord to limit global warming to 2 degrees Celsius (3.6 degrees Fahrenheit), with an aspirational target of 1.5 C (2.7 F). This target is important, but sometimes confusing. It is rooted in science, but it is not a singular “tipping point.”
As the planet warms beyond 1.5 C, multiple large-scale climate shifts will become more likely.
Ocean circulation is already slowing, coral reefs face increasingly common mass bleaching events as the oceans heat up, and Arctic permafrost is thawing, releasing greenhouse gases that further fuel climate change. Rising temperatures are also fueling increasingly frequent and more damaging heat waves, droughts, wildfires and flooding that put human lives and livelihoods at risk.
https://datawrapper.dwcdn.net/mRX0t/1
Recognizing these risks, the Paris Agreement was widely heralded, and many countries have made progress in lowering their emissions in the decade since. However, not all countries are pulling their weight.
In 2023, the U.N. acknowledged that the countries’ current commitments for addressing climate change, known as nationally determined contributions, or NDCs, would still result in a catastrophic 2.5 C to 2.9 C (4.5 F to 5.2 F) of warming by 2100.
The World Meteorological Organization issued a “red alert” in November 2024 that the world is on track to overshoot the 1.5 C goal this year. It notes that this overshoot can be temporary – if countries take greater action.
How the world can still meet the Paris goals
Countries can still turn the tide on climate change.
The outcomes of the 2023 climate talks provided a road map for countries to increase their efforts toward net-zero emissions:
- Triple renewable energy capacity globally.
- Accelerate a phasedown of coal power.
- Transition away from fossil fuels.
- Accelerate zero-emissions and low-emissions technologies.
- Cut methane and other noncarbon dioxide emissions.
- Reduce emissions from road transport.
- Phase out inefficient fossil fuel subsidies.
Many countries are making progress on this transition.
Among developed countries, Norway is on track to phase out of fossil fuel vehicle sales in 2025. China has become a leader in renewable energy. It pledged in 2020 to double its renewable energy capacity by 2030, and, thanks to solar power deployment, it expects to complete that goal in half the time.
Other nations, including the U.K., Greece and Denmark, have embarked on major efforts to scale down coal power, with Portugal being the first to hit zero coal.
An important mechanism of the Paris Agreement is the expectation that countries will ratchet up their commitments every five years. The deadline for these new climate goals is early 2025, and some countries have gotten a head start.
Brazil announced its new climate commitments during the climate conference, pledging to reduce emissions 67% by 2035. The United Arab Emirates submitted a commitment to reduce its emissions by 47% compared with its 2019 baseline emissions. Other countries signaled their intentions in high-level statements. Belgium announced a doubling of its climate finance contribution.
These new announcements are a good sign of continued global support for the Paris Agreement goals.
Additionally, the conference made progress on agreements to reduce non-CO₂ emissions, namely methane, nitrous oxide and hydrofluorocarbons – also known as climate change “super pollutants” because of their extreme global warming potential.
Why the Paris Agreement will survive a second Trump presidency
There is no doubt that Donald Trump returning as U.S. president will pose significant roadblocks to efforts to slow climate change. As a candidate, he talked about throttling back U.S. efforts, including cutting funding for clean energy and eliminating regulations on the fossil fuel industry.
But efforts to deal with climate change are bigger than one person or even one country.
While Trump has declared that he will pull the U.S. out of the international Paris Agreement again, influential people are advising him to reconsider. Exxon Mobil CEO Darren Woods argued that a U.S. withdrawal would leave a hole at the global negotiating table.
Even if Trump does pull the U.S. out of the treaty, which he can do after a one-year waiting period, that doesn’t mean pro-climate actions in the U.S. will simply stop or that the agreement will fall apart.
There are commonsense business reasons to push climate efforts forward, starting with the fact that clean energy is now cheaper than fossil fuels in much of the world. Nearly 1 in 5 vehicles sold in 2023 globally were electric. In the U.S., heat pump sales are beating gas furnaces for the third straight year. https://ourworldindata.org/grapher/levelized-cost-of-energy?tab=chart
A withdrawal from the Paris Agreement also does not prevent states and cities from continuing their progress against climate change.
In fact, after Trump announced he would withdraw the U.S. from the agreement in 2017, several U.S. states doubled down on their climate commitments. Hawaii, for example, passed legislation to be “Paris compliant” and get to net-negative emissions, meaning it will sequester more emissions than it emits.
California continues to report falling emissions even with a growing economy. The state sued several large oil and gas companies for deceiving the public about climate change.
Moreover, a U.S. retreat from the Paris Agreement would not be an embargo on individual actions. Engineers and scientists will continue to create innovative technology to reduce emissions and slow climate change, and corporations will reap the economic benefits of energy efficiency and clean energy market leadership.
This acknowledgment has given rise to calls for a blend of optimism and pragmatism.
Looking ahead to 2025
Next year’s COP30, to be held in Brazil, is important because countries face a deadline for setting new targets. Overall, their current policies still fall short of the 1.5 C goal.
Calls for greater commitments are not just optimistic, they are economically and morally compelling.
For one, the future cost of inaction now is greater than the cost of action, so concerted decisions to delay emissions cuts now will only harm countries in the future.
Morally, the international community has a responsibility to mitigate suffering. This is the very nature of long-held international norms and laws, such as the “responsibility to protect,” and reiterated in Pope Francis’ calls for global environmental responsibility.
While the climate will breach the 1.5 C warming limit, every fraction of a degree matters. I believe it is crucial that countries, states, business leaders and people everywhere continue the shift toward cleaner energy to minimize the impact.
Researchers Emerson Damiano and Lauren Segal, students in environmental studies at the University of Southern California, contributed to this article.
Shannon Gibson, Associate Professor of International Relations and Environmental Studies, USC Dornsife College of Letters, Arts and Sciences
This article is republished from The Conversation under a Creative Commons license. Read the original article.
STM Daily News is a vibrant news blog dedicated to sharing the brighter side of human experiences. Emphasizing positive, uplifting stories, the site focuses on delivering inspiring, informative, and well-researched content. With a commitment to accurate, fair, and responsible journalism, STM Daily News aims to foster a community of readers passionate about positive change and engaged in meaningful conversations. Join the movement and explore stories that celebrate the positive impacts shaping our world.
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