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. Greenhouse gases The main driver of climate change is the greenhouse effect. Some gases in the Earth's atmosphere act a bit like the glass in a greenhouse, trapping the sun's heat and stopping it from leaking back into space and causing global warming. Many of these greenhouse gases occur naturally, but human activity is increasing the concentrations of some of them in the atmosphere, in particular: • carbon dioxide (CO2) • methane • nitrous oxide • fluorinated gases
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2. Cutting down forests (deforestation). Trees help to regulate the climate by absorbing CO2 from the atmosphere. When they are cut down, that beneficial effect is lost and the carbon stored in the trees is released into the atmosphere, adding to the greenhouse
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3. Burning fossil fuels When we burn fossil fuels like coal, oil and gas to create electricity or power our cars, we release CO2 pollution into the atmosphere.
Answers & Comments
Answer:
1) Climate change has become a global cause of concern, especially in the last few decades.
2) Climate change is harming forests, wildlife, water systems as well as the polar region of the Earth.
3) Many species of plants and animals have become extinct due to changes in the climate on Earth.
4) Researchers constantly observe patterns to understand past, present and future climatic conditions.
5) A record of the climate has been accumulated and regularly updated based on geological evidence to study changes.
The main driver of climate change is the greenhouse effect. Some gases in the Earth's atmosphere act a bit like the glass in a greenhouse, trapping the sun's heat and stopping it from leaking back into space and causing global warming.
Many of these greenhouse gases occur naturally, but human activity is increasing the concentrations of some of them in the atmosphere, in particular:
• carbon dioxide (CO2)
• methane
• nitrous oxide
• fluorinated gases