vatican city vatican pope francis insistence strongly back paris climate change deal would see u.s. exit slap face disaster everyone senior official say thursday meet last month pope give u.s. president donald trump sign copy 2015 encyclical letter call protect environment effect climate change back scientific evidence cause human activity vatican secretary state cardinal pietro parolin urge trump separate meet quit paris accord really pull would huge slap face us say bishop marcelo sanchez sorondo head pontifical academy sciences host numerous international conferences climate change disaster everyone tell rome newspaper la repubblica telephone call reuters sanchez sorondo confirm comment newspaper trump due announce decision late thursday source brief decision tell reuters washington follow campaign pledge pull unite state global agreement accord agree nearly 200 countries 2015 aim cut emissions blame global warm unite state commit reduce 26 28 percent compare 2005 level 2025. sanchez sorondo say believe u.s. oil lobby behind decision industry maneuver trump withdrawal would disaster completely unscientific say say need rely coal oil like say earth round absurdity dictate need make money trump call idea global warm hoax march cardinal peter turkson pope point man environment immigration development urge trump listen dissent voice reconsider position climate change former u.s. president barack obama help broke paris accord praise trip europe month canada european union china say honor commitments pact unite state withdraw vatican would see u.s. paris deal exit slap face official