Smog returns, but Beijing says skies are getting cleaner
China is in third year of "war on pollution" aimed at reversing damage done to its skies, soil and water after decades of untrammelled economic growth
At least 100 homes burned as fire erupts in Valparaiso, Chile
Drought in central Chile caused record number of forest fires in the area last year, wreaking havoc on Chile's forestry industry and forcing evacuations in recent weeks near the capital, Santiago
Beijing enjoys brief respite, but choking smog to return on Tuesday
Smog alerts across China's north since mid-December have lead to orders for factories to cut production or close, and for restrictions on motorists to cut emissions
Qatar World Cup construction workers to get 'cooling' hats
Scientists design solar-powered hard hats to improve conditions for labourers who rights groups say have suffered abuses
China warns freezing northern provinces more heavy smog on the way
"Unfavourable weather" is expected to bring more smog to Beijing-Tianjin-Hebei region, as well as neighbouring provinces of Shandong and Henan
Obama designates monuments, protects federal land in Utah, Nevada
Obama has used Antiquities Act and other measures to protect more land and water than any administration in history, White House says
Floods in southwest Congo kill at least 50
Scientific models predict climate change will bring increased rainfall to central Africa over course of this century
Madrid to cut traffic volumes in half as pollution rises
Madrid has been later than other European cities in applying anti-pollution measures, but weather has sent levels soaring
China to cap 2017 energy consumption at 4.4 bln tonnes coal equivalent
China is entering its third year of a "war on pollution", including a push to curb energy demand and use cleaner fuel
China smog war moves to courts with range of crimes to widen
New rules could make it easier to take legal action against companies causing air pollution