Arctic warming: Greenhouse gas nightmare?

Arctic warming: Greenhouse gas nightmare?
Large amounts of methane and carbon dioxide could be produced as warming changes Arctic lands and ocean. Could this start a frightening feedback, where warming makes more gas that makes more warming? More »

Wildfire goes wild in Arizona

Wildfire goes wild in Arizona
As wildfires torch Western states, what is the role of global warming? Does hotter weather contribute to fires? Does the resulting carbon dioxide accelerate global warming? Could we see a vicious cycle of warming, fires and more warming? More »

Greenhouse gas maps

Greenhouse gas maps

Using at least 20 sources of data, scientists have modeled releases of carbon dioxide from Indianapolis. The new view will help cities map reductions in greenhouse warming, and help people understand that the climate warming problem belongs to everybody. More »

West Nile virus running wild

West Nile virus running wild

Mosquitoes spread a lot of disease, but they are not just “flying hypodermic needles.” As we rush to protect ourselves against a virus that can cause permanent brain damage, how can we understand and control the mosquitoes that spread West Nile? More »

Himalayan glaciers

Himalayan glaciers

A long debate about these giant ice streams has gyrated wildly. Now, satellite data show a moderate loss of mass for a recent six-year period. For inaccessible glaciers, satellites may be the best thing since the ice axe! More »

Light at night: Mixed blessing!

Light at night: Mixed blessing!

Researchers are finding more links to obesity, cancer, and sleep disturbances. Light blocks the release of melatonin, a hormone involved in the body clock. Wildlife scientists are finding effects on competition, predation and reproduction. Could light pollution from streets, cars and buildings drive animal evolution? More »

Fixing filthy beaches

Fixing filthy beaches

Most water pollution originates in polluted runoff. After a near-record number of beach closures, could green infrastructure convert stormwater from liability to asset? Rain gardens, rain barrels, infiltration ponds, green roofs, buffer strips all trap sediments and nutrients while reducing the load on sewer systems. Is green infrastructure oversold? More »

Freaky fish flirting

Freaky fish flirting

A chemical from plastics “looks” like estrogen to the body. If it makes female fish more likely to flirt with males of a different species, could endocrine disruptors cause cross-breeding, and a decline in native fish after invaders enter their rivers? More »

Honeybees getting lost?

Honeybees getting lost?

As colony collapse disorder continues to attack honeybee hives, a new study shows that a common insecticide interferes with their return flights. Although the disorder probably has many causes, agricultural chemicals have long been key suspects, and this study adds to the suspicion! More »

Fracking fracas

Fracking fracas

A high-pressure rock-buster caused natural gas production to explode. How does fracking work? What’s up with groundwater pollution? More »

Feeding 7+ billion

Feeding 7+ billion

The green revolution fed billions, but population keeps rising, water is short and the climate is changing. How will Africans feed themselves despite poor soil and widespread poverty? Could small projects that fit the environment and culture make farmers an engine of prosperity and a big source of food? More »

Weather, climate, war

Solemn, young Congolese boy in oversized raincoat, raindrops falling, green grass behind him

If conflicts are more common near the equator, what will global warming affect do? A new study shows increases in conflict during el Niño periods — but only during the warm, dry part of the cycle, and only in places affected by these big climatic cycles. More »

River health: Finding fixes

River health: Finding fixes

Can we fix rivers? Dams, levees, and locks can harm rivers and wetlands. So can draining rivers dry, or encasing them in concrete. In a few places, conservationists are finding smarter ways to manage rivers and wetlands. Is a win-win solution possible for our wicked water woes? More »

State of the rivers: Ruinous?

State of the rivers: Ruinous?

Rivers bring water. They house amazing biodiversity. And they are being polluted, tapped, dammed and diverted at a frightening rate. What does a new study of global rivers tell us about something we can’t afford to lose?
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