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NASA scientists flew over the Kuskokwim river in southwest Alaska in 2017 to investigate how water levels in the Arctic landscape change as permafrost thaws. Peter Griffith, NASA

By Tim Radford

Scientists have identified yet another hazard linked to the thawing permafrost: laughing gas. A series of flights over the North Slope of Alaska has detected unexpected levels of emissions of the greenhouse gas nitrous oxide from the rapidly warming soils.

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Tracy Matsue Loeffelholz

By Tracy Matsue Loeffelholz

Oil spills don't stand a chance against the cleansing power of mycelium.

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EcoWatch Daily Newsletter

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By Brian Barth

Early spring is the time to dream big about your garden. This year, I'm going to grow 10 varieties of tomato — and I will not let a weed be among them! But any grand vision, if it is to be executed, must be matched with the right implementation plan and tools. Here are a few ideas to help you brainstorm.

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A new study reveals the health risks posed by the making, use and disposal of plastics. Jeffrey Phelps / Getty Images

With eight million metric tons of plastic entering the world's oceans every year, there is growing concern about the proliferation of plastics in the environment. Despite this, surprisingly little is known about the full impact of plastic pollution on human health.

But a first-of-its-kind study released Tuesday sets out to change that. The study, Plastic & Health: The Hidden Costs of a Plastic Planet, is especially groundbreaking because it looks at the health impacts of every stage in the life cycle of plastics, from the extraction of the fossil fuels that make them to their permanence in the environment. While previous studies have focused on particular products, manufacturing processes or moments in the creation and use of plastics, this study shows that plastics pose serious health risks at every stage in their production, use and disposal.

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PeopleImages / E+ / Getty Images

By Daniel Ross

Hurricane Florence, which battered the U.S. East Coast last September, left a trail of ruin and destruction estimated to cost between $17 billion and $22 billion. Some of the damage was all too visible—smashed homes and livelihoods. But other damage was less so, like the long-term environmental impacts in North Carolina from hog waste that spilled out over large open-air lagoons saturated in the rains.

Hog waste can contain potentially dangerous pathogens, pharmaceuticals and chemicals. According to the state's Department of Environmental Quality, as of early October nearly 100 such lagoons were damaged, breached or were very close to being so, the effluent from which can seep into waterways and drinking water supplies.

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Marshes at Blackwater National Wildlife Refuge on Maryland's eastern shore. Ataraxy22 / Wikimedia, CC BY-SA

By Jennifer Weeks

World Wetlands Day on Feb. 2 marks the date when 18 nations signed the Convention on Wetlands in 1971, in the Iranian city of Ramsar on the shores of the Caspian Sea. Since that time, scientists have shown that wetlands provide many valuable services, from buffering coasts against floods to filtering water and storing carbon. These five articles from our archive highlight wetlands' diversity and the potential payoffs from conserving and restoring them.

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PeopleImages / DigitalVision / Getty Images

By adopting three practices—no-till farming, cover crops and diverse crop rotations—farmers worldwide can help preserve the world's soils, feed a growing global population, mitigate climate change and protect the environment.

This was the key message of a presentation by David Montgomery, professor of geology at the University of Washington, at the Iowa Organic Conference in November.

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Adam Hester / Blend Images / Getty Images

The climate needs your help, the water needs your help, the land needs your help. In 2019 be part of the solution. The soil you walk on and grow food in holds a secret to some of the biggest problems facing the planet today.

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Terramera CEO and founder Karn Manhas. Terramera / YouTube screenshot

By Karn Manhas

Wildfires across North America, Europe and Australia. Animal species dying out at unprecedented rates. Extreme weather events. Rising sea levels. Climate change, long an invisible menace, exacted a very real toll in 2018. But beneath the surface lies another, widely overlooked link between these calamities: the way we grow our food.

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Hundreds gathered in San Francisco with the youth-led Sunrise Movement on Dec. 11. Peg Hunter / Flickr, CC BY-NC 2.0

By Eric Holt-Giménez

Over eight decades ago, the Dust Bowl devastated over 100,000,000 acres of agricultural land and the Great Depression threw 15 million Americans out of work. President Franklin Delano Roosevelt instituted the New Deal with sweeping national programs for work, agriculture, food, and land conservation.

Today, the plan for a Green New Deal recently announced by congressional representatives Alexandria Ocasio-Cortez and Bernie Sanders is facing down even greater crises.

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A spruce-fir forest in New Hampshire on March 26, 2018. cappi thompson / CC BY 2.0

By Andrew Reinmann and Pamela Templer

Climate change often conjures up images of heat, drought and hurricanes. But according to the latest U.S. National Climate Assessment, released on Nov. 23, 2018, winters have warmed three times faster than summers in the Northeast in recent years. These changes are also producing significant effects.

Historically, more than 50 percent of the northern hemisphere has had snow cover in winter. Now warmer temperatures are reducing the depth and duration of winter snow cover. Many people assume that winter is a dormant time for organisms in cold climates, but decades of research now shows that winter climate conditions—particularly snowpack—are important regulators of the health of forest ecosystems and organisms that live in them.

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