German city of Hamburg to restrict older diesel vehicles
Bans on diesel vehicles from city centres are also planned in Paris, Madrid, Mexico City and Athens by 2025
Strict curbs on global warming would buoy world economy -study
"By the end of the century the world would be about three percent wealthier"
China could meet emissions pledge early; carbon market on track -officials
China, the world's biggest emitter of climate-warming greenhouse gases, has reiterated its commitment to the Paris deal
Storm in Somaliland kills dozens, wipes out farms, livestock
Tropical cyclone Sagar made landfall on Saturday in north-western Somaliland and Djibouti
UK government launches plan to curb air pollution
Plan comes just days after European Commission said it would take Britain and five other countries to EU Court of Justice for failing to respect air quality limits
Pakistan heatwave kills 65 people in Karachi - welfare organisation
A combination of Ramadan fasting and 44-degree Celsius (111 degree Fahrenheit) temperatures are proving deadly in Karachi
Heavy rains, landslides kill five in Sri Lanka
Authorities warn against landslides and floods in low-lying areas
Tropical cyclone hits Somaliland killing at least 15 people-governor
Thousands of people have been affected by the flooding, displacement and the destruction of infrastructure
Hawaii lava flow engulfs more homes as ash plume ascends
A further 2,000 residents of coastal communities may face compulsory evacuation
EU court upholds insecticide ban to protect bees
"The ruling sets the EU's priorities straight – its primary duty is to protect people and nature, not company profit margins"