As the effects of climate change from greenhouse gas emissions become more obvious, Living Planet looks at innovative renewable energy projects around the globe.
Drought, flooding, melting ice caps, rising sea levels, hurricanes, forest fires ... the effects of climate change are far reaching and potentially catastrophic.
But the increased use of renewable energies may change this. The wind, sun, water and even plants are all sources of energy that could play an important role in reducing the carbon dioxide emissions contributing to global warming.
Living Planet looks at innovative alternative energy projects around the globe.
Find out how the thrifty Swedes use "rock energy" to heat their homes. Learn about a German farmer swapping his pigs for solar panels or why Dutch vegetable growers are diverting excess CO2 into their greenhouses.