Heat is necessary for all life on Earth. However, right now many people are worried that the Earth is getting too hot. Last year, for instance, we saw more drought in Europe, extreme heat in India and more violent storms in the USA and West Africa. This is due to climate change.
For a long time, humans have used fossil fuels like oil, coal and gas to enable them to drive more cars, operate larger factories, fly further and grow crops and raise livestock on large farms. In large parts of the world a lot of resources are consumed for everything from heating to cooking and computers. All this results in large emissions of carbon dioxide.
Cars driven on fossile fuels such as petrol, release a lot of carbon dioxide into the atmosphere. Photo: Biofriendly CC BY 2.0