What is the social cost of carbon?

What is the social cost of carbon?

To turn the tide against climate change, on the day of his inauguration US president Joe Biden signed an executive order instituting a raft of policy changes and initiatives. One directed his team to reassess the social cost of carbon. This seemingly obscure concept puts a number on how much damage a metric ton of carbon dioxide emitted today will do in the future, in order to show how much a given climate policy would benefit the economy in the long run.