'Truly frightening' data from 32,000 tracked species shows average decline of 69%, with parts of Latin America seeing losses as high as 94% from 52 years ago, WWF says

University researchers confirm disputed World Wildlife Fund estimate of 68% decline in vertebrate numbers over past 50 years, say drop was likely even higher

Report from World Wildlife Fund highlights dire state of plastic-filled sea, in country that uses the second most disposable plastic in the world, in absolute terms

Thousand-page report approved by 109 nations concludes over 1 million species of plants and animals facing extinction