Burning a lot of fossil fuels is causing problems like acid rain and global warming. The Earth's temperature has gone up by 0.56 degrees Celsius in the last 100 years, leading to global climate change. Gases like carbon dioxide, nitrous oxide, and methane are making the planet warmer by trapping heat. Some other gases, like HFCs, PFCs, and SF6, are also adding to this problem. Scientists are working on ways to control these gases to protect the environment.