Kenyan villagers tap traditional wisdom to save native trees and water
Ecologists and officials say efforts to protect water sources work better and last longer if led by local communities
U.S. climate envoy Kerry visits Japan, China for emissions talks
The U.S. push for more ambitious action to curb emissions by East Asia's major polluters comes ahead of the COP26 U.N. climate conference in Scotland in November
Residents, tourists scramble to evacuate as California fire nears Lake Tahoe
Dry fuel and up-slope canyon winds helped fan the fire over almost 10,000 more acres since Sunday
Ida carves path of destruction across Louisiana, leaves low-lying towns stranded
The hurricane knocked out power and prompted rescue operations in flooded communities around New Orleans before weakening and churning northward
Rescue operations underway in Louisiana as Ida death toll expected to rise
The National Guard has dispatched thousands of personnel and vehicles that can navigate flooded roads, boats and 34 helicopters, to rescue people stranded by flood waters
U.S. health department sets up climate change office
The office's mission is to protect vulnerable communities disproportionately affected by pollution and climate-driven disasters
Use of leaded petrol eliminated in 'milestone' for health, environment, U.N. says
U.N. Environment Programme campaigned to end use of the the petrol which it says contaminates air, soil and drinking water and can cause heart disease, stroke and cancer
Ida loses punch, levees hold, but Louisiana expects more rain and flooding
Although Ida has now weakened to a tropical storm, heavy downpours could bring life-threatening flooding and power lines have been heavily damaged
Ida pounds Louisiana, topples power lines and plunges New Orleans into darkness
The storm has weakened but is expected to continue unleashing heavy downpours "likely to result in life-threatening" flooding, after fierce winds toppled power lines
Bucking global shift to cleaner energy, Zimbabwe digs deeper into coal
The government says more coal mining will create jobs and give the country's power supply a much-needed boost, but critics warn the environmental cost is too high