"Amid the pomp and circumstance of the opening ceremony of the Olympic Games on Friday, in between the fireworks and musical acts,...came a more somber message. In primetime, with the world watching, Brazil showed a video focused on the problem of global warming and climate change."

"One day after U.S. health officials announced an early start to a clinical trial to test a Zika vaccine in humans, researchers reported in the journal Science that three types of vaccines designed to block the virus all worked to perfection in monkeys."

"Hurricane Earl is forecast to weaken to a tropical storm later Thursday morning and to a tropical depression by Friday morning as it moves farther inland over Belize, the U.S. National Hurricane Center (NHC) said on Thursday."

"As government works to save big cats from extinction, indigenous forest dwellers pursue peaceful coexistence for man and beast".

"Earth's fever got worse last year, breaking dozens of climate records, scientists said in a massive report nicknamed the annual physical for the planet."

"The United Nations has tried to cover up its involvement in the Australian government’s successful attempt to have all mentions of the country removed from a report on climate change and world heritage sites, freedom of information documents show."

"Japan and South Korea have both taken steps to block certain imports of U.S. wheat after unapproved genetically-modified (GMO) plants from Monsanto Co seeds were found growing in Washington state, a spokeswoman for the U.S. Department of Agriculture (USDA) said on Monday."

"A new study finds that a commonly used insecticide kills much of the sperm created by male drone honey bees, one reason why the bees are dwindling."

"Health experts in Brazil have a word of advice for the Olympic marathon swimmers, sailors and windsurfers competing in Rio de Janeiro’s picture-postcard waters next month: Keep your mouth closed."

"Multi-ethnic nations are vulnerable to armed conflicts after weather disasters such as heatwaves and droughts in a trend that could worsen with global warming, scientists said on Monday."