News stories about the climate crisis often contain mentions of greenhouse gases, and the greenhouse effect. Whilst most will find the analogy easy to understand, what exactly are these gases, and why are they contributing to the warming of the Earth?
1. What is the greenhouse effect?
2. Why does the warming matter?
3. What are the major greenhouse gases?
4. How is human activity producing these greenhouse gases?
5. What can we do to reduce GHG emissions?
The UN Environment Programme has outlined its six-sector solution, which can reduce 29–32 gigatons of carbon dioxide by 2030 to meet the 1.5°C warming limit. The six sectors identified are: energy; industry; agriculture and food; forests and land use; transport; and buildings and cities.
By UN News. January 8, 2022.
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