A reportfromClimateActionTracker, or C, A T, andindependentscientificanalysisproducedbyresearchersconcludedthatinorderfortheUnitedStatestodoitssharetolimittheriseofglobaltemperaturesto 1.5 degreesCelsius, thegoaloftheParisclimateagreementitneedstocutatleast 57% ofitsemissionsbefore 2030.