Research casts doubt on plans by UK government to offer subsidies for carbon capture attached to the power source
Burning wood for power generation can be worse for the climate than burning gas, even when the resulting carbon dioxide emissions are captured and stored, new research has shown.
The findings cast doubt on plans by several governments, including the UK, to offer subsidies or other financial support for carbon capture attached to wood-burning power.
Bio-energy with carbon capture and storage (BECCS) has been touted as a clean way of producing baseload power, substituting for gas and coal, which could even result in “negative emissions” as when replacement forests are grown they take up CO2 from the air.
But such systems could take 150 years to be “carbon negative”, researchers from the US, UK and China have found, in part because of the long time it takes to regrow forests, and because of the damage done when existing savannah, pasture or cropland is converted to grow biomass for burning.
