In Canada, climate change could open new farmland to the plow
As global warming intensifies droughts and floods, causing crop failures, Canada may see something different: a farming expansion
Fears of dam collapse add to Puerto Rico's misery after hurricane
Some 70,000 people live in a cluster of communities under evacuation downstream from the dam on the rain-swollen Guajataca River
On an overheating planet, parched nations look to the clouds
To cope with worsening heat and drought, countries from the United States to China are turning to "cloud seeding" to boost rainfall
FACTBOX-Six ways to stay cool without air conditioning
When the next heatwave hits, what are the cheap, green options to keep the temperature down?
U.S. mainland Puerto Ricans anguished, unable to reach loved ones
The communications breakdown has been painful for many of 5.17 million people living in the United States who identify as Puerto Ricans
Hurricane-ravaged U.S. cities hit by rising cleanup costs
Just five percent of Houston's debris has been cleared, a city official estimates
Storm Maria pitches Puerto Rico barrio into sunken "Venice"
STORM-MARIA/PUERTORICO (PIX, TV):Storm Maria pitches Puerto Rico barrio into sunken "Venice"
Move over malaria: Mosquitoes carrying Zika, dengue may thrive in warmer Africa
Hotter weather and migration to cities may make different diseases the scourge of the future in Africa, scientists say
Human frontiers: How much heat can the body and mind take?
"We tend to think we're stronger than nature - but we're not," explorer says
Leaked memo fuels accusations of ethnic bias in Afghan government
AFGHANISTAN-POLITICS/:Leaked memo fuels accusations of ethnic bias in Afghan government