Renewable Energy - The Only Way

Renewable energy systems such as wind offer the best - perhaps the only way towards cutting greenhouse gas emissions by 95% or more by 2050. That's the growing view of wind energy insiders, gathered in Brussels for the European Wind Energy Association's annual conference and exhibition. And recent events in Japan may have gone further in persuading the public and those with money that it's one of very few viable options. This report from Jim Gibbons.