If CO2 emissions are causing global temperatures to rise, why have global temperatures fallen since 2016? Is the earth undergoing global cooling again

I say 'again' because the same media who's reporting on global warming were claiming in 70s that the earth was actually undergoing global cooling and had people believing another ice age was near. Now it's the opposite. I wasn't born in the 70s but people from that time remember how the news media pushed the global cooling theory and that is something people should consider before believing the global warming theory.