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Advances in greenhouse technology have made growing flavorful tomatoes year-round easier. And scientists say climate change may soon make it harder to grow delicious tomatoes outdoors in fields.

Colorado is embroiled in debate over how to regulate oil and gas development. Up to four energy-related issues could be on the November ballot, and the run-up is causing confusion among voters.

Since the disastrous BP spill in 2010, environmentalists have kept watch over Louisiana's coastline. One consortium says there's far more oil leaking into the Gulf than companies are reporting.

Brazil is facing questions after ousting its first female president. The largest nation in Latin America is dealing with a huge corruption scandal that's engulfing its business and political elite.

Children who live in cities in the Northeast are much more likely to have asthma. But a wider look finds that poor children in the suburbs are at high risk, too.

The British firm that developed the strain of mosquito says it has already tested the insect in tropical countries and found it can reduce populations of disease-carrying mosquitoes by 90 percent.

As oil prices dip, controversial and relatively expensive production methods, like oil sands and fracking, have become less profitable. Some drillers are already cutting back on plans for more wells.

Is your colleague's perfume too strong? Did the cleaning crew just come by? Some say fragrances are chemical irritants that should be banned from the office. But doing so isn't so easy.

Studies based on private health data are crucial to understanding dangers posed by pollution. A new rule makes it harder for the EPA to consider many studies when setting safeguards.

Climate and environment policies nearly always end up in court these days. They may have a harder time surviving if Amy Coney Barrett cements a conservative majority on the Supreme Court.