By Peter Bosshard – International Rivers – June 14, 2011

According to a new report which the Intergovernmental Panel on Climate Change (IPCC) published today, the sky is the limit for the expansion of renewable energy. With an investment of slightly less than 1% of global GDP, renewable energy could contribute up to 43% of the world’s energy supply by 2030, and 77% by 2050. Such an increase could stabilize the CO2 concentration in the atmosphere at 450 ppm and may be just enough to avoid catastrophic climate change. For the IPCC report, click here. For the full article summarizing it, click here.