"The quality of sperm from men in North America, Europe and Australia has declined dramatically over the past 40 years, with a 52.4 percent drop in sperm concentration, according to a study published Tuesday."
"The tropical forests in western Uganda, home to a dwindling population of endangered chimpanzees, are disappearing at some of the fastest rates on Earth as local people chop down trees for charcoal and to clear space for subsistence farming."
"If human civilization were to be destroyed and its cities wiped off the map, there would be an easy way for future intelligent life-forms to know when the mid-20th century began: plastic."
"Scientists worry the next devastating disease could be born where animals and humans mix in a Third World slum – then cross the globe. Zika may have been a preview."
Author Lisa Palmer tackles a question many experts in the natural and social sciences are also pondering: How can we feed a growing world population in the coming decades when climate change is stressing global food production systems?
"The shores of Scotland’s Orkney Islands are dotted with ruins that date to the Stone Age. But after enduring for millennia, these archaeological sites – along with many others from Easter Island to Jamestown – are facing an existential threat from climate change."
"The U.S. will seek to use a United Nations fund designed to aid nations hard hit by climate change to promote the construction of coal-fired power plants around the world."
"Some 200 environmental and land-rights activists were killed in 2016, making it the deadliest year on record as an intensifying battle over shrinking natural resources and climate-cooling forests leads to more clashes."
"A 'biological annihilation' of wildlife in recent decades means a sixth mass extinction in Earth’s history is already well underway and is more severe than previously feared, according to new research."
"A handful of big fossil fuel producers have been responsible for the majority of global greenhouse gas emissions in the years since climate change seized the world's attention as a looming crisis, according to a new report issued today."