Contrary to a common perception, ignoring climate change won’t make it disappear. Global research going back to 1824 in fields ranging through physics, oceanography, biology and geology have confirmed human activity — mainly burning fossil fuels, raising livestock and destroying carbon sinks like forests and wetlands — is increasing greenhouse gas emissions and causing global temperatures to rise rapidly, putting humanity at risk. Every legitimate scientific academy and institution and every government, except the current U.S. administration, agrees.