The announcement from the outgoing UK Prime Minister Theresa May on June 12th can be read in many ways. Politically it could be holding the future PM hostage to fortune, having to implement a policy he does not agree with whilst leaving her with a positive legacy people will remember. Practically the announcement was met with scepticism from Greenpeace who criticised that off-shoring reductions through offsets in (for example) tree planting in other countries leads to abuse of the system and weakness in monitoring. While the discredited climate sceptic from Denmark, Bjorn Lomborg, (you can read more about his discredited science here) highlights the costs rather than the benefits.