This document discusses the impacts of climate change due to rising greenhouse gas emissions. It notes that greenhouse gases like carbon dioxide, methane and nitrous oxide trap heat in the atmosphere, causing global temperatures to increase. Charts show that levels of these gases have risen sharply since the Industrial Revolution due to human activities like burning fossil fuels and deforestation. The rising temperatures are causing sea levels to rise and glaciers and ice sheets to melt, which threatens coastal communities and reduces habitat for polar bears. The document suggests governments and individuals need to reduce greenhouse gas emissions to mitigate the risks of more severe droughts, floods and heat waves in the future.