Concentrating solar power plants seem in many ways like a silver bullet for the world's energy problems - but have we looked closely enough at their environmental impacts?
Planning approval for attempts at the first commercial geothermal power plant in Cornwall could see renewable heat and electricity being generated as early as 2013
A new wave of hydropower projects is under way in the quest for clean renewable energy but tribal and indigenous peoples continue to be ignored by those pushing through the plans
Most officials in both Europe and the UK still believe peak oil is a problem the markets will solve. That's a dangerous game to play with our energy supplies, says Lionel Badal
Energy secretary Chris Huhne focuses on 2050 targets in first major policy statement but admits the UK faces 'short-term challenges' to meet targets for renewable energy
Campaigners fear the construction of the world's third largest hydroelectric dam in Brazil is just the start with many more being planned in the Amazon basin
