This week, the heads of the EU member states will meet in Brussels to discuss the adoption of a 40 percent greenhouse gas reduction target for 2030. Despite the fragmented state of global climate policy, such front runner action could reduce future global warming by more than 1 degree if it induced others to join by 2030. This is shown by a study now published by an international team of scientists. Major emitting countries may have to join the EU's effort much earlier to avoid a temporary...