"Amid growing alarm about methane’s role in driving global warming, a Canadian firm has begun selling a service to detect even relatively small leaks. At least two rivals are on the way."

"North Atlantic right whales, a critically endangered species with fewer than 366 remaining individuals, face two main threats: fishing gear entanglements and ship strikes."

"Work is beginning on what is thought to be the world's first major plant to store energy in the form of liquid air."

"The U.S. Food and Drug Administration must rethink its approval of a plan to breed genetically altered salmon because it did not fully consider what would happen if those fish escaped into the wild, a federal judge ruled Thursday."

"Some of the most popular products of biotechnology — corn and cotton plants that have been genetically modified to fend off insects — are no longer offering the same protection from those bugs. Scientists say that the problem results from farmers overusing the crops, and are pushing for new regulations.

These crops were the original genetically modified organisms, or GMOs. They weren't the first ones invented, but they were the first to be widely embraced by farmers, starting in the late 1990s.

"It was a scorching August day at the Hoover Dam as three Trump administration officials gathered for a little celebration honoring pollution-free hydroelectricity."

"Now the companies and countries responsible for a powerful greenhouse gas won’t be able to hide from view."

"In a rare show of defiance of the Trump administration, key Senate Republicans joined Democrats on Thursday in agreeing to phase out chemicals widely used in air conditioners and refrigeration that are warming the planet."

"Thousands of tons of pollution spew into the air in the US from devices that proliferate online and in body shops".

"In his clean energy plan last month, presumptive Democratic presidential nominee Joe Biden called for a ramp-up in research on renewable hydrogen, which in theory could be a transformative, emissions-free fuel source for everything from cars to cement making."