Birds are an excellent indicator for learning the effects of climate change, especially in tropical ecosystems.
A slideshow of images from around the world capturing the rare annular solar eclipse on Sunday.
Researchers say climate change could dramatically change fruit & nut industries around the world.
Global climate talks are underway in Bonn, Germany, to pave the way for high-profile negotiations in Qatar later this year.
With rapidly emerging economies like China not obligated to curb emissions, many nations question 20-year-old protocols.
The MS TÃƒÂ»ranor PlanetSolar is the first vehicle to circumnavigate the globe using solely solar power.
This weekend's "Supermoon" is bigger & brighter than the average full Moon: it's worth a look if you've got clear skies.
NASA teamsed up with school children to send Camilla the rubber chicken into space to measure solar radiation.