Global warming is caused by increased emissions of greenhouse gases from human activities like burning fossil fuels and deforestation. As greenhouse gases accumulate in the atmosphere, they trap heat and cause global temperatures to rise. This warming leads to changes in climate patterns and impacts like rising sea levels, stronger storms, more wildfires, and disruption of animal and plant habitats. Solutions include transitioning to renewable energy, improving energy efficiency, sustainable forest management, and developing new low-carbon technologies.