United Nations Secretary General Ban Ki-moon meets with a group of teenagers at #UnitedNations Headquarters in #NYC to record a special message about taking global action in 2015 to make sure that people everywhere can thrive on our one and only planet. World leaders will come together at a series of high-level events this to set the course for a #sustainable future -- ensuring prosperity while protecting the #environment and taking action on #climatechange. #Regram: @unitednations Photo: Melanie Prudhomme/ #UN #action2015 #development #climateaction #climate #children #climasphere