Hydroelectric power plants can generate vast amounts of electricity. The technology is emissions-free, reliable and safe. But large dams and hydropower facilities can sometimes create more problems than they can solve. Learn more in the latest GLOBAL IDEAS multimedia dossier http://bit.ly/GI_dossierHydro

Biomass is derived from different plant-based organic materials. That includes so-called energy crops such as oil palms, soya or sugarcane as well as plant, household and industrial waste. Biomass can used in a variety of ways – for heating purposes, to generate electricity or to produce biofuels for vehicles and even airplanes. – Everything you ever wanted to know about biomass is now available in the latest GLOBAL IDEAS dossier! Read articles, see photos and watch our reports on the issue right here: http://bit.ly/GI_dossierBMEN