Sustainable Practices

(Family Features) Implementing sustainable practices aimed at sequestering carbon, or carbon farming, can help farmers and ranchers increase their bottom line while managing environmental impact in numerous ways, including keeping the soil covered year-round, reducing or eliminating tillage, and managing range and pasture lands. Carbon farming practices help farmers and ranchers reap the proven benefits of a conservation approach. That, combined with a new revenue stream available via voluntary carbon programs, offers the potential for better outcomes.

Of the Earth’s land surface, 38% is used for agriculture. Capturing carbon in the soil is an affordable and scalable way to cut greenhouse gas emissions in the atmosphere while nurturing healthy, secure and sustainable food systems. Through soil carbon sequestration, farmers and ranchers can become leaders in limiting the effects of climate change while enriching the land’s livelihood.

Implementing practices that meet operational needs, and ultimately sequester carbon to generate carbon credits, allows ranchers and farmers to create additional income, lower future management costs and improve soil health, resulting in enhanced yields, cost savings and more resilient, healthy fields and pastures.

Working closely with farmers and ranchers across the United States, Agoro Carbon Alliance helps implement sustainable practices like these, which bolster natural soil fertility and can also generate carbon credits and new revenue streams.

1. No-Till and Reduced-Till Farming: Reducing or eliminating tillage minimizes disruption to the soil and reduces carbon emissions. When soil is tilled, it releases carbon stored within the ground into the atmosphere. Moving an operation to reduced till or no-till practices not only offers benefits to soil quality but can also play a role in mitigating soil erosion, as well as reducing fuel and labor costs.
    
2. Cover Crops: Cover crops improve soil health and help keep carbon “locked in” while preventing nutrient loss and erosion in fields. Developing an effective and profitable cover crop strategy is one way farmers partner with Agoro Carbon Alliance. Backed by a team of highly trained agronomists that collaborate with producers, their team of local agronomists work one-on-one with producers to build a cover crop strategy that best suits each unique operation and keeps soil thriving year-round.
    
3. Interseeding: A related and valuable approach to soil protection and carbon sequestration is interseeding. This occurs when a new crop is planted as a cover or companion in a field where an existing crop has reached vegetative growth. Interseeding increases the number of plants in the soil, resulting in more roots, which promote more efficient biomass and carbon sequestration.
    
4. Rotational Grazing and Grazing Management: Controlling livestock grazing patterns can be advantageous for animal health, as well as the soil and pasture quality. Moving animals from one pasture to another on a systematic basis provides greater control over the quality of the forage, allowing plants to deepen root systems, which enhances the soil’s biomass and supports more efficient carbon sequestration. Rotational grazing also prevents the soil from becoming excessively compacted by animal movement and allows ranchers to distribute natural manure fertilization more evenly.
    
5. Nitrogen Management: Strategically managing how and when nitrogen fertilizer is applied can both increase crop efficiency and yield potential while reducing environmental impacts associated with nitrogen fertilizers. Judicious use of nitrogen-containing fertilizers can help optimize carbon storage, boost yield potential and improve forage.

Soil conservation practices can drive productivity and add a new revenue stream for farm and ranch operations, as well as generate carbon credits. Learn more about sustainable agriculture and carbon cropping at agorocarbonalliance.com.

 

SOURCE:
Agoro Carbon Alliance

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Aarin-Conrad Allen, Florida International University

The gentle, slow-moving Florida manatee has no natural predators.

And yet, these charismatic mammals face numerous threats.

Manatees are struck by vessels in busy waterways across the state, and a majority bear scars from these collisions.

Harmful algal blooms – characterized by the rapid growth of algae that degrades water quality – can impair their nervous systems.

With less blubber, or fat, compared with other marine mammals like whales, dolphins, seals and sea lions, manatees are vulnerable to cold-stress syndrome during winter months.

And they can ingest or get entangled in marine debris like derelict fishing gear and drown or be crushed by floodgate and water control structures.

I am a doctoral candidate in marine biology at Florida International University’s Institute of Environment. Over the past 15 years, I have gained extensive experience working with marine mammals, particularly manatees.

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Recently, my colleagues at the United States Geological Survey, Florida Department of Environmental Protection and I documented a change in the dietary pattern of manatees. We found that manatees are eating less seagrass – traditionally their primary food source – and more algae than in decades past. This change occurred along Florida’s Atlantic coast during a period of extensive seagrass decline.

We believe this represents an emerging threat to the species’ survival.

Protected species

Manatees were listed as an endangered species under the Endangered Species Act of 1973. By the early 1990s, the manatee population in Florida had dwindled to less than 1,300.

Researchers believe that federal protection, along with additional state measures such as slow-speed zones and no-entry refuges, has contributed to the growth of the manatee population in Florida.

In 2017, manatees were reclassified from endangered to threatened. Surveyors counted 5,733 individual manatees during a statewide aerial survey conducted in 2019.

Florida manatees average 9-12 feet (2.7-3.7 meters) in length and typically weigh about 1,000 pounds (450 kilograms), but they can grow as large as 3,500 pounds (1,600 kilograms). As the largest fully aquatic herbivore, they consume 5% to 10% of their body weight in vegetation each day.

While manatees eat a broad diet of over 60 different plants, they most commonly feed on species of seagrass. Seagrasses are marine plants that, like land plants, have leaves, flowers, roots and seeds, and make their food through photosynthesis.

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So what happens when these seagrasses are no longer available?

A changing estuary

The Indian River Lagoon is an estuary along Florida’s east coast that covers roughly 350 square miles (560 square kilometers) between the mainland and barrier islands, from Ponce Inlet to Jupiter Inlet.

It is a critical habitat for manatees, which feed on native seagrass meadows in the lagoon during their seasonal migrations.

Seagrasses are vital to the health of marine ecosystems. They are a habitat for juvenile fish and other marine organisms, provide food for aquatic herbivores, reduce carbon in the atmosphere and improve water quality. They also protect coastal habitats by stabilizing sediments and reducing wave energy that can erode shorelines and damage coastal infrastructure, especially during hurricanes.

For more than a decade, the Indian River Lagoon has experienced extensive loss of seagrass meadows, due to a series of algae blooms associated with nutrient runoff and degraded water quality from septic overflow leaching into the environment.

When untreated sewage and fertilizers flow into the estuary, they add nitrogen, phosphorus and other nutrients that drive excessive algal growth. These harmful algal blooms deplete oxygen levels and block sunlight, which seagrass needs for photosynthesis.

Between 2011 and 2019, over 50% of all seagrass in the lagoon was lost. This led to an increase in macroalgae and even led to a change in the animal communities that live in the lagoon. For example, among finfish, sheepshead populations declined, while seabream numbers increased. Invertebrate communities were also affected, with bryozoans colonizing areas previously dominated by barnacles.

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Manatees along the Atlantic coast have suffered two unusual mortality events since the seagrass decline, including one that is ongoing. Researchers attribute the increase in manatee deaths to malnutrition due to a shortage of seagrasses in the Indian River Lagoon.

A shift in manatees’ diet

In our study, we examined 193 manatee stomach samples collected from carcasses recovered from the Indian River Lagoon during two time periods – one before and one after the onset of the seagrass loss in 2011.

We compared stomach sample contents from carcasses collected between 1977 and 1989 with samples collected between 2013 and 2015.

Our findings indicate that manatees consumed 45% less seagrass and 74% more algae after the seagrass decline.

Recently, in a study supported by FIU’s Center for Aquatic Chemistry and Environment, I investigated differences in the nutritional composition – like protein, fat, carbohydrate and fiber – of items identified in manatee stomach samples. My preliminary results show notable differences in the nutritional composition of seagrass and algae.

Marine mammals are particularly vulnerable to dietary shifts due to their large size and high energy demands. Such changes can worsen their physical health and increase the likelihood of starvation.

Depleted oxygen levels are having a similar impact on aquatic vegetation and seagrass meadows in other regions of Florida, like Biscayne Bay and the Caloosahatchee River and Estuary. This suggests that the ecological challenges seen in the Indian River Lagoon could become more widespread.

What is the solution?

Remediation efforts within the lagoon have incorporated the restoration of seagrass through aquaculture and replanting strategies, similar to efforts to restore coral reefs.

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While the lagoon’s seagrass has recently shown signs of regrowth, the rehabilitation of the ecosystem must begin with improving and maintaining water quality.

Counties along the lagoon have enacted fertilizer bans that aim to reduce the levels of nitrogen and phosphorus in the water that drive algal blooms.

New research, however, indicates that these restrictions alone will not fix the problem, as residential septic systems are the primary source of nutrient pollution in the lagoon.

Furthermore, many of the factors contributing to harmful algal blooms are intensified by global warming and changing climate, which could accelerate the decline of seagrass in Florida and elsewhere.

Given the multiple, synergistic threats facing manatees, I believe that improving water quality, protecting their food sources, and further research – coupled with community outreach and education – are critical to ensure the long-term survival of this iconic Florida species.

Aarin-Conrad Allen, Ph.D. Candidate in Marine Sciences, Florida International University

This article is republished from The Conversation under a Creative Commons license. Read the original article.

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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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New Shepard 28

Blue Origin has once again captured the public’s imagination with the announcement of its ninth human flight, the NS-28 mission, set to launch from Launch Site One in West Texas on Friday, November 22. With the launch window opening at 9:30 AM CST (15:30 UTC), excitement is brewing as space enthusiasts and potential future astronauts gear up for another exhilarating journey into the cosmos.

One of the highlights of this mission is the crewed aspect, making it another significant step in Blue Origin’s mission to democratize access to space. Following the success of its previous flights, NS-28 promises to deliver an experience that will inspire and ignite passion for space exploration. The live webcast on BlueOrigin.com will commence at T-30 minutes, offering spectators a front-row seat to this groundbreaking event.

The NS-28 Mission Patch: A Story of Meaning and Symbolism

Accompanying the NS-28 mission is a beautifully designed mission patch that encapsulates the spirit and purpose of this historic flight. Each element of the patch carries deep significance, painting a portrait of the crew and their aspirations in space.

• Emily Calandrelli is represented by the color pink and a girl in signature pink overalls, acknowledging her influential role as a science communicator and advocate for space education.
• For Sharon and Marc Hagle, this flight marks their second journey on New Shepard, a milestone aptly symbolized by the centerline in the “2,” fostering a sense of continuity and commitment to space travel.
• The stars in the mission patch signify Austin Litteral’s enduring vision of humanity’s place among the stars, highlighting the adventurous spirit that drives our quest for knowledge beyond our planet.
• At the bottom of the patch, a representation of people embodies J.D. Russell’s hope for future generations to expand their understanding of the universe, underscoring the mission’s educational and inspirational goals.
• Lastly, the wolf in the crew capsule’s window stands as a tribute to Hank Wolfond, symbolizing the strength, courage, and tenacity that is required for exploration beyond our earthly confines.

Looking Ahead: The Future of Space Tourism and Exploration

As Blue Origin prepares for the NS-28 mission, more than just a flight is at stake. This mission represents a significant leap in commercial space travel and signifies a broader movement towards making space accessible and enjoyable for everyone. Each launch brings us closer to a future where experiencing space is a possibility for many, rather than just a select few.

With the countdown ticking down to November 22, stakeholders, space enthusiasts, and the general public alike are encouraged to tune in to the live webcast and partake in the excitement surrounding human spaceflight. Innovations in technology and a shared passion for exploration are paving the way for a new era of discovery—one where the stars are no longer out of reach.

Join us in celebrating the NS-28 mission—an emblem of human ingenuity, curiosity, and the indomitable spirit of exploration. See you on launch day—let’s reach for the stars together!

For more information about the crew, please see our previous blog post here

Or read the post from Blue Origin here.

Follow Blue Origin on X, Instagram, Facebook, LinkedIn, Threads, and YouTube, and sign up at BlueOrigin.com to stay updated on all mission details.

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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/