| Question | Answer |
| Climate change | Long-term sustained change in the average global climate |
| Natural greenhouse effect | The property of the Earth's atmosphere by which long wavelength heat rays from the Earth's surface are trapped or reflected back by the atmosphere |
| Enhanced greenhouse effect | Results from human activities that increase the concentration of naturally occurring greenhouse gases and leads to global warming and climate change |
| Global warming | The increase in the average temperature of the Earth's near-surface air in the 20th and early 21st centuries and its projected continuation |
| Tipping point | The point at which the damage done to global systems by climate change becomes irreversible |
| Insolation | The heat energy from the sun consisting of the visible spectrum together with ultraviolet and infrared rays |
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