July 24th, 2011
An international team of scientists have given a preview of a report that will be released at the end of this month. It indicates that up to 77% of the global energy supply could be met by renewables by mid-century. This optimistic projection is the most positive of four scenarios that the scientists analyzed int the report, but it is already raising questions on some of the renewables that that have been included in these scenarios.
The key takeaway is that there can be no appreciable rise in renewable energy in the global market without the right enabling of public policies. Included among the renewable energy sources in the report is bioenergy, which includes forest, agricultural and livestock residues and so-called second generation biofuels. Other technologies that were cited include wind energy, direct solar power, hydropower, geothermal energy and ocean tidal energy.