Florida Keys residents say they feel a strong sense of community and see a fast recovery as restaurants reopen and cleanup crews remove debris caused by the powerful storm that struck the state on September 10.

Chinese executive Miao Qing spits into a specially designed container, destined for a lab where her saliva will be analysed and sequenced, offering an insight into her genetic make-up and -- more importantly -- her ancestry. Duration: 1:04

Tim and Lucy Hawking, children of the great physicist Stephen Hawking who died in March 2018, launch his final book, 'Big Answers to the Big Questions', and highlight the worries their father had about the current global political situation.

Bhutan holds the record as the world's only carbon negative country, but major challenges stand in the way of the Himalayan kingdom's decision to follow a green path over rampant economic expansion.

Former U.S. vice president and climate change campaigner Al Gore calls for urgent action to tackle climate change at an investment summit in India, a day after the UN said in a landmark report that the fallout from global warming had come sooner and harder than earlier predicted.

Former New York mayor Michael Bloomberg is using his vast fortune, estimated at $51 billion, to spur action to address climate change -- and to tilt the US Congress toward Democratic control.