Who needs cars? Smart mobility can make cities sustainable
With cities poised to invest now in infrastructure that will last for decades, huge opportunities lie ahead
Malala, Tutu back global anti-poverty push in "crucial year"
Without "resolute action" at UN summit, one billion more people will suffer extreme poverty, activists say
Pope says climate change mostly man's fault
"We have, in a sense, lorded it over nature, over Sister Earth, over Mother Earth," says Pope Francis
Malawi floods raise fears of cholera outbreak, poor harvest
Floods in south raise fears of cholera outbreak, half of Malawi declared disaster zone
Tensions surge in Jordan as refugees compete for scarce water
Limited resources – and growing resentment- could threaten Jordan’s stability, researchers warn
Russia's forests overlooked in climate change fight
Russian forests need stronger domestic protection and a place in a new global climate change deal, experts argue
Malawi floods kill at least 48, damage crops
Half the country declared a disaster zone after torrential rains leave 70,000 homeless, Mozambique also hit
White House to curb methane emissions from oil, gas production
Steps proposed to contain leaking potent methane, the second biggest source of greenhouse gas emissions
Sea level rise quickens more than thought in threat to coasts
Rise accelerates 25 pct more since 1990 than estimated, study says