Teamwork, training and toughness saves a big wave surfer from drowning on Dec. 22.
It may be a parasite, but the holiday plant actually plays a key role in keeping forests healthy, research shows.
Frankincense could soon become only a relic of the past if nothing is done to protect the trees that produce it.
Today we got some bad news about climate change: it's happening faster than expected. If I'm one of the 38.4 million people hitting the roads and skies tomorrow, does this mean I'm going to make things even worse by adding more carbon emissions as I travel? Is trying to visit Grandma...
Kris Kringle's operations have moved safely off the thinning Arctic sea ice -- onto Greenland.
Pines, spruces and other trees were thought to be adding methane into the atmosphere, but that may actually be absorbing it.