When the rain finally comes, newborn animals appear and migrating birds arrive.
Predators and prey are squashed uncomfortably close at the only water source.
Specialist camera teams follow the animals in Zambia's Luangwa Valley.
A look at scientists' claims about human contribution to global warming.
Three mathematicians aim to clear up the climate change debate for good.
Dallas Campbell explores how what goes on underground keeps our country on the move.
Dallas Campbell reveals the hidden wonders beneath our feet.
Although a candidate just entered the 2020 presidential race with a platform centered on climate change, some experts say Americans aren’t fully aware of the scope and seriousness of global warming.
In addition to recovering and rebuilding after a brutal war with ISIS, Iraq is facing a dire water shortage.
In the Gaza Strip, 97 percent of freshwater is unsuitable for human consumption, and raw sewage pours into the Mediterranean Sea.