Human caused global climate change is primarily due to the release through our activities of greenhouse gases greenhouse gases are released into the air where they persist for a long period at. Are humans causing or contributing to global warming author david herring october 29 2020 yes by increasing the abundance of greenhouse gases in the atmosphere human activities are amplifying earths natural greenhouse effect virtually all climate scientists agree that this increase in heat trapping gases is the main reason for the 18f 10c rise in global average temperature . Global warming the human contribution english edition ebook jack barrett amazonde kindle shop. Human emissions primarily responsible for rising surface temperatures over the last century average global temperatures have raised by 14f the most significant changes occurred in the past 30 years after scientists modeled the earths temperature with both human and natural drivers of climate change the results showed the reality. Natural changes in the sun and earth cannot explain todays global warming human activities are causing earth to heat up in ways that are different from warm periods in the past earth is getting hotter since 1900 the average surface air temperature has risen 18 degrees fahrenheit 1 degree celsius
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