Bjorn Lomborg, Director of the Copenhagen Consensus Center, explains that full compliance with the Paris agreement would cost hundreds of billions of dollars per year beginning now and rise to $1–2 Trillion per year from 2030 onward. It would still reduce CO2 emissions by only 1% of the amount the Intergovernmental Panel on Climate Change says is needed to limit global warming to 2˚C (3.6˚F) over pre-industrial levels.
