Global warming is caused by human activities like burning fossil fuels and deforestation. This increases carbon dioxide levels in the atmosphere, trapping heat in a greenhouse effect. As a result, evaporation and rainfall decrease while temperatures rise, turning more land into deserts. To address global warming, individuals need to reduce their energy usage by actions like turning off lights and taking shorter showers, while governments must cut greenhouse gas emissions and halt deforestation. Deserts are experiencing threats from climate change that could cause plant and animal species to become extinct.