By Rhodri Morgan UK government biomass subsidies are undermining efforts to tackle climate change, a new report has warned. Biomass energy generation, which typically involves burning wood pellets, creates more CO2 per megawatt-hour of energy than burning fossil fuels when considering the full chain from fuel production to electricity generation, the paper by the free market think tank the Institute of Economic Affairs (IEA) said. However, biomass smokestack emissions are officially credited to the country where the trees are grown, primarily the United States and Canada. This means wood burni…