This week was published another new landmark report from the International Panel on Climate Change (IPCC). This one is focusing on renewable energies as no less than 164 scenario where studied.
You may have read it, one of them notes that energy sources like solar, wind and biomass could answer up to 77 % of our needs by the middle of this century. This is not surprising as the WWF even believes they could answer ALL of them.
Much has been said about this on countless websites and newspapers such as the New York Times but I would like to point out a few things.
First of all, not all renewables are equal. Some are truly great solutions, however some are absolutely not. As an example, we have seen many times here that current biofuels are NOT a sustainable solution as they drive food prices up (not as if the drought was enough…) and thus people into famine.
Second, if some scenarios goes as far as 77 percent, this doesn’t mean ALL of them say so. As it is written in the summary for policymakers :
More than half of the scenarios show a contribution from RE in excess of a 17% share of primary energy supply in 2030 rising to more than 27% in 2050.
Third, without energy efficiency, nothing of this can be done. Indeed, energy consumption is still growing and fossil fuels still account for the majority of this increase (see my previous note on the matter)