"Hundreds of the world’s leading climate scientists expect global temperatures to rise to at least 2.5C (4.5F) above preindustrial levels this century, blasting past internationally agreed targets and causing catastrophic consequences for humanity and the planet, an exclusive Guardian survey has revealed."

"The growing invasion of sargassum in the Caribbean has impacted the quality of life of the islands' residents. But local governments have failed to coordinate an international response to problem."

"The White House has unveiled tighter rules for research on potentially dangerous microbes and toxins, in an effort to stave off laboratory accidents that could unleash a pandemic."

"In a world growing increasingly accustomed to wild weather swings, the last few days and weeks have seemingly taken those environmental extremes to a new level. Some climate scientists say they are hard pressed to remember when so much of the world has had its weather on overdrive at the same time."

"As legacy publications celebrated their Pulitzer Prize wins Monday, bottles of champagne were also uncorked at Lookout Santa Cruz, a fledgling 10-person newsroom based on the second floor of a former bank on Santa Cruz’s quiet, tree-lined Pacific Avenue."

"Tribal community plans a village that’s ‘as resilient as possible’"

"Its growth driven to epic levels by climate change and fertilizer runoff, sargassum puts dozens of species — and people — at risk."

"The oil and gas industry has reaped profits without ensuring there will be money to plug and clean up their wells. In Oklahoma, that work could cost more than $7 billion if it falls to the state."

"For several years now, one question has held the key to understanding just how much we should worry about the hundreds of tons of DDT that had been dumped off the coast of Los Angeles." "Now, in a highly anticipated study, researchers have identified tiny zooplankton and mid-to-deep-water fish as potential links between the contaminated sediment and the greater ecosystem."

"The bird flu virus sweeping across dairy farms in multiple states has acquired dozens of new mutations, including some that may make it more adept at spreading between species and less susceptible to antiviral drugs, according to a new study."