News
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.
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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.
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The Knowledge
Where Does Federal Money Go? The Biggest Costs Behind the Budget
Where does federal money go? Part two of our National Debt Explained series examines the biggest expenses in the 2025 budget and how spending connects to government borrowing.
Last Updated on October 13, 2026 by Daily News Staff
The Knowledge | National Debt Explained, Part 2
When discussing debt, ask: Who borrowed the money? That question helps distinguish a family’s finances from the federal budget. Our first episode explained why your credit card balance is separate from the national debt. Now comes the next question: What does the federal government spend money on?
Much of it pays for retirement benefits, health coverage, national defense, public services, and interest on previous borrowing.
Social Security was the largest individual program in fiscal year 2025, costing approximately $1.6 trillion. But combine the major health care programs—including Medicare, Medicaid, and health insurance subsidies—and their spending reached about $1.8 trillion, exceeding Social Security alone. cbo.gov
The figures below cover October 1, 2024, through September 30, 2025.Major expense FY 2025 spending What it supports Social Security About $1.6 trillion Retirement, survivor, and disability benefits Medicare, net $988 billion Health coverage for older adults and certain people with disabilities Net interest $970 billion Cost of servicing publicly held federal debt, after subtracting interest income Discretionary defense $893 billion Military personnel, operations, equipment, and research Medicaid $668 billion Federal contribution toward health coverage and care for eligible people
These are selected expenses, not the entire budget. Medicare spending is shown after premiums and other offsetting receipts. The combined health care total already includes Medicare and Medicaid, so it should not be added to those rows. cbo.gov
The government also supports veterans’ health care, transportation, education, housing assistance, courts, law enforcement, scientific research, disaster response, and environmental protection. Nondefense discretionary spending totaled approximately $980 billion in 2025, covering many of these services. Some funding for these areas falls elsewhere in the budget. cbo.gov
Federal spending falls into three broad groups:
- Mandatory spending: Payments governed by existing eligibility rules and benefit formulas, including Social Security and major health programs.
- Discretionary spending: Funding lawmakers control through appropriations legislation, including most defense spending and many public services.
- Net interest: The expense of servicing publicly held federal debt, minus government interest income. cbo.gov
Interest deserves attention because it pays for borrowing already undertaken. In 2025, net interest exceeded discretionary defense spending. Congressional Budget Office
A program’s cost does not automatically translate into an equal increase in national debt. Taxes and other receipts finance much of federal spending. Social Security and Medicare’s hospital insurance program receive dedicated payroll taxes, while Medicare also collects premiums.
In 2025, federal spending totaled approximately $7 trillion, compared with $5.2 trillion in revenue. The roughly $1.8 trillion shortfall was the deficit, requiring borrowing. Understanding national debt therefore means examining both what government spends and what it collects. cbo.gov
Explore more explanations behind the headlines at STM Daily News, home of The Knowledge.
Sources for this episode
- CBO: The Federal Budget in Fiscal Year 2025 — Overview of spending, revenue, deficits, and debt interest.
- CBO: Mandatory Spending in Fiscal Year 2025 — Breakdown of Social Security, Medicare, Medicaid, and other benefit programs.
- CBO: Discretionary Spending in Fiscal Year 2025 — Defense spending and services including transportation, education, and veterans’ health care.
- CBO: Overview of the FY 2025 Budget Infographics — Highlights the largest expenses and broader budget trends.
Related reading
- U.S. Treasury: Understanding the National Debt — What federal debt represents and how borrowing works.
- U.S. Treasury: Understanding the National Deficit — Explains the difference between an annual deficit and accumulated debt.
- U.S. Treasury: Federal Spending — Additional context about where federal money goes.
Daily News
Whose Debt Is the National Debt?
The national debt isn’t Americans’ credit card balances added together. This simple explainer separates federal borrowing from household debt and explains the difference between debt and a deficit.
Last Updated on October 11, 2026 by Daily News Staff
The Knowledge | STM Daily News
When you hear “national debt,” do you picture everyone’s credit card balances added together? The name can create that impression, but the national debt and household debt measure different borrowing.
The U.S. national debt is money the federal government owes. Your personal credit card balance is not included.
Federal debt versus household debt
The Treasury defines national debt as the federal government’s total outstanding borrowing accumulated over the country’s history. Household debt covers borrowing by individuals and families, including mortgages, credit cards, auto loans, and student loans.
|Type of debt |Who borrowed? |Examples |
|————–|————————|————————————————–|
|National debt |Federal government |Outstanding Treasury securities |
|Household debt|Individuals and families|Credit cards, mortgages, auto loans, student loans|
Putting a $500 purchase on your credit card increases your personal balance. It does not add $500 to the national debt.
How does the national debt grow?
When federal spending exceeds tax collections and other revenue, the government runs a budget deficit. Treasury sells securities to borrow money to cover the gap.
Consider a simplified, hypothetical example: the government collects $5 trillion and spends $6 trillion in one year. That leaves a $1 trillion deficit requiring financing.
A deficit measures a shortfall over a period, usually a year. Debt measures outstanding borrowing accumulated over time. Repeated deficits generally increase that debt. Interest on existing borrowing is also a federal expense.
Does paying off your credit card reduce the national debt?
Paying off a card reduces what you owe your lender. It does not directly repay Treasury borrowing. Household debt and government debt can influence the same economy, but they remain separate obligations.
When discussing debt, ask: Who borrowed the money? That one question helps distinguish a family’s finances from the federal budget.
Find more explanations of the ideas behind the headlines at STM Daily News, home of The Knowledge.
Sources
● U.S. Treasury: Understanding the National Debt
● U.S. Treasury: Understanding the National Deficit
● Federal Reserve Bank of New York: Household Debt and Credit Report
Science
October Meteor Showers Give Phoenix Skywatchers a Reason to Look Up
Phoenix skywatchers have several chances to catch October’s meteor showers. Here’s when to watch the Taurids and Orionids—and how moonlight affects the view.
Last Updated on October 10, 2026 by Daily News Staff
PHOENIX — October is bringing several opportunities to spot shooting stars over the Valley, with the Draconids reaching their October 8–9 peak and more meteor activity ahead.
The Draconids remain active through October 10, although viewers should expect a light display as the peak passes. Under favorable conditions, the shower typically produces only a handful of meteors per hour. timeanddate.com
Next, the Southern Taurids have an annual activity peak around October 14. Known for occasional bright fireballs, the shower continues into November. The stronger Orionids peak on the night of October 21 into the morning of October 22, typically producing 10–20 meteors per hour under dark skies. A bright Moon will interfere with this year’s display. American Meteor Society
The Orionids originate from debris left by Halley’s Comet. For Phoenix viewers, the best opportunity will be after moonset and before dawn, weather permitting. City lights will further reduce the number visible. amsmeteors.org
NASA recommends finding a viewing area away from streetlights, allowing about 30 minutes for eyes to adjust, and watching a broad stretch of sky. No telescope is needed—just a comfortable chair and patience. NASA Science
ECurious about what’s happening above us? Explore more space stories and science explainers in The Knowledge at STM Daily News.xplore more space, science and everyday
