This assembly of essays examines whether global warming is a real phenomenon or a myth, addressing possible causes like carbon dioxide, deforestation, melting permafrost, and livestock agriculture. Readers will evaluate the effects of global warming on the polar ice caps, polar bears, and human health. They'll consider some proposed strategies to mitigate the impact. Essay sources include Ralph Nader, Toby Heaps, Marisa Miller Wolfson, Michael Reagan, and Kassie Siegel.