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According to the Intergovernmental Panel on Climate Change (IPCC), humanity has until the year 2030 to limit climate change or dramatically increase the risk of extreme heat, floods, and droughts that will affect hundreds of millions of people worldwide. Since the mid-twentieth century, the primary cause of climate change has been the extreme increase in global emissions of greenhouse gases caused by human activities. Though the scale of the problem is global, there are nonetheless steps you can take as an individual to lower your carbon footprint.