Climate change refers to long-term shifts in weather patterns and temperatures caused primarily by human activity like burning fossil fuels since the 1800s. This produces greenhouse gases that trap heat in the atmosphere and cause global warming. The major causes of climate change are burning fossil fuels for energy and transportation, cutting down forests, industrial agriculture, and overconsumption. The effects of climate change include hotter temperatures, more severe storms, increased drought, greater health risks, and more poverty and displacement as extreme weather destroys homes and livelihoods.