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CMOS Toronto Centre Series - Planet Earth in Crisis - A Way Forward - Geoff Strong

The climate emergency has planet Earth in crisis. Slowly increasing global mean temperatures represent a huge amount of heat continually added to the atmosphere and oceans, and heat is energy. All atmospheric and oceanic dynamics have been energized, including the basic poleward Meridional Circulation, the tropical Hadley Circulation, tropical storms and mid-latitude weather systems. The impacts are far-reaching and deep, and affect all natural and social systems throughout the globe. Virtually unnoticed here are the health impacts on human and all other living things. Burning fossil fuels emit greenhouse gases but also release toxic air pollutants, including carbon monoxide, sulfur dioxide, various oxides of nitrogen, and other aerosols. The WHO estimates that these poisonous gases cause more than eight million global deaths annually from heat stroke, melanoma, various cancers and asthma. The warming climate also lessens our ability to grow healthy foods. The obvious answer should be to convert our energy production over from fossil fuels to renewable clean electric energy. We discuss how and why this needs to be carried out in a step- wise fashion, starting at local scales while ignoring fossil fuels, and allowing market forces to reduce fossil fuel demand, ultimately resulting in reduced carbon emissions. This may be our only way to secure a liveable future for our grandchildren and generations to come.