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 More »

Poaching problem

Poaching problem
As elephant poaching soars, carbon dating, a mainstay of archeology, could be used to date ivory, based on heavy isotopes left over More »

Roads: helpful here, harmful there

Roads: helpful here, harmful there

Roads are the first insult to pristine natural areas — and a key to agricultural productivity in places where farming makes sense. 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 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 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 More »

Tundra fire: Bad news on warming

Tundra fire: Bad news on warming

The globe warms, and the Arctic starts to burn. A new study measures carbon releases from the largest tundra fire in North America. More »

Wildfire!

Wildfire!

Constant fire-fighting has made remaining fires more intense, but controlled burns have their own hazards. More »

Bats under attack

Bats under attack

White nose syndrome has killed a million bats in the eastern U.S., and spread to Nova Scotia, South Carolina and Tennessee. Why is the More »

Cholera: Haiti’s latest scourge

Cholera: Haiti’s latest scourge

Cholera can kill with record speed. The bacterium is easy to control — if wastewater and drinking water are treated. Haiti — More »