France's far-right is expected to make significant gains in June's European elections. A swing to the right in the European parliament could weaken EU climate policy. Reporting by Chris Eales, Editor France, Montel. Contributors: Phuc-Vinh Nguyen, research fellow in French and European energy policy, Jacques Delors Institute; Alice Franz, Director of European and International Affairs, UFE; and Jan Jacob Boom Wichers CEO, Holosolis.