Emissions from the two countries make up for more than 50% of the world's pollution-related deaths.
Polluting chemicals used as flame retardants are concentrating in the most remote parts of the ocean.
Experts believe more giant 'flying foxes' will drop out of trees in coming days.
BBC investigation looks at how rangers in north-eastern India shoot poachers to protect rhinos.
Workers are cutting and piercing the stranded animals as they swell.
The mandatory evacuation for Oroville, Thermalito, and Palermo now extends to the Sutter County Line.
Icy winds from Scandinavia cause freezing temperatures
The latest development underscores the challenges in decommissioning the wrecked nuclear plant.
Natural weather and climate phenomena caused historic sudden sea level changes.
The storm came a day after temperatures soared to 17 Celsius (63F), giving millions of people a taste of spring.
President Duterte and his cabinet revoke Regina Lopez's decision to close 23 mines.
A sticky gel and animal hairs attached to a miniature drone is a step towards artificial pollination.
Mass eruption at one of the world's biggest volcanic features contributed to extinction of the dinosaurs.
The clues the penguins use to find food are no longer fitting in warmer, over-fished seas.
A powerful storm is lashing the northeastern United States, with the potential for more than a foot of snow along the Philadelphia-to-Boston corridor.
A total of six tornadoes hit the city and other parts of Louisiana, destroying homes and businesses.
First domesticated 7,000 years ago, scientists have now sequenced the genome of quinoa.
IBTimes UK interviews director of World Vision Somalia on extent of food scarcity in conflict-ridden country.
The minerals leesite, leószilárdite and redcanyonite are forms of 'uranium rust'.
Conservation team moved 16 bison from a protected herd in Alberta to Panther Valley, where they remain under observation until summer 2018.
300,000-year-old corals stretching for 20km tell the story of the historic event.
Geneticist Vavilov ended up starving to death in a Soviet gulag in 1943.
Quake struck coastal city of Pasni in Balochistan province.
The level of harmful breathable particles known as PM2.5 has hit 1,000 micrograms. The World Health Organisation acceptable standard is 20-25 micrograms.
Environment Minister stands by decision to close 23 of 41 mines and says country 'unfit for mining'.
Sulphides are toxic to marine life at concentrations of just a few hundred parts per million.
Geoglyphs in the Amazonian forest were not created via large-scale deforestation.
Armyworms are a crop pest native in the Americas but have recently become an invasive species in Africa.
Wildfires occur everywhere around the globe but we can take steps to reduce the destruction they cause.
A 2015 paper finding that there was no 'global warming hiatus' has been verified in independent studies.