Global warming may be more severe than expected by 2100 - study
World temperatures could rise 15 percent more than expected this century, scientists say
Somalia's Puntland region declares state of emergency over drought
Drought has gripped large parts of the Horn of Africa country this year and the UN says children face acute malnutrition
Exxon climate-change probe goes to Massachusetts top court
The hearing is part of a probe into whether the oil company misled investors and consumers about its knowledge of climate change
Arctic sea ice melt to exacerbate California droughts -study
A recent five-year drought cost California's farmers billions of dollars in lost production and caused hydroelectric systems to fail
Tesla switches on giant battery to shore up Australia's grid
"We think that's what's really going to accelerate the uptake of energy storage in Australia"
Brazil environmentalist Marina Silva to run for president in 2018
"Brazilians want a country free of corruption"
More Bali flights cancelled on forecast of volcanic ash
"We have advised citizens the volcano may erupt. We never say 'please don't come' but we have issued travel advisories"
Cyclone batters southwestern India coast killing 14, many missing
Cyclone Ockhi has claimed so far around 14 lives with many fishermen still feared trapped at sea
Scientists look to Bali volcano for clues to curb climate change
Volcanoes are emerging as natural laboratories to mimic "geo-engineering" - a possible short-cut to curb global warming by injecting sun-dimming chemicals high above the Earth
German court paves way for Peruvian farmer's suit against RWE
Case centres on whether a company can be held financially responsible for the contribution of its emissions to the effects of climate change in other parts of the world