Does recycling plastics on an industrial scale make economic sense?
Could environmentalism be the answer to the current global economic crisis?
Can the European Union get 20% of its energy from renewable sources by 2020?
Could space missions and satellite communications be damaged by orbiting debris?
Can anything be done to combat coastal erosion in Norfolk, England?
Can Kansas City go from being the worst place in America to cycle, to the best, by 2020?
How the gold-mining boom has affected Guatemala's indigenous communities
What does new marine environmental legislation mean for the British fishing industry?
The impact of environmental issues on the campaigns of Barack Obama and John McCain
The row surrounding Donald Trump's plans to build the "world's greatest golf course"
Are India's urban agriculturalists a potential public health hazard?
Across sub-Saharan Africa urban agriculture is forbidden. But are attitudes changing?
The social shifts caused by the coal boom in Australia and what will happen when its over
Report from remote eastern Siberia into the global problem of illegal logging
Beekeepers urge governments to fund research into colony collapse disorder
Disturbing evidence that the UN's system of carbon trading is fundamentally flawed
Plans to extract methane gas from Rwanda's Lake Kivu for electricity generation
The trade in illegal wildlife products on Nepal's borders with India and China
Panel discussion on the future challenges for the Amazon rainforest