At least 1,100 people have died in the earthquake that struck the Indonesian island of Sumatra on Wednesday, UN humanitarian chief John Holmes has said. Marco Werman gets the latest from Amelia Merrick with the aid group World Vision.
Arizona and the Mexican state of Sonora are divided by an international border. But they're united by the Santa Cruz river. Now government agencies and citizens groups on both sides are struggling to preserve this precious waterway. Lorne Matalon reports.
Darfur has been embroiled in conflict since 2003. One impact of the fighting is that refugees often don't have access to clean drinking water. A group of college students in Boston has been raising money to build deepwater wells to supply cleaner water.
In the aftermath of January's devastating earthquake there's a lot of talk about finally getting things right in Haiti, a sense that the opportunity to rebuild means the opportunity to fix what's been wrong. The World's Jeb Sharp reports.
Anchor Lisa Mullins speaks with reporter Daniel Estrin in Israel about the country's biggest-ever forest fire, which is burning near the port city of Haifa. Israel has received help from several countries in the effort to put out the blaze.
Desalination — taking the salt out of seawater so humans can drink it — is becoming more important as the Earth warms and drinking water gets more scarce, but it's not a cheap or simple process. Here are some ways it might get more affordable and environmentally friendly.