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19 lut 2021 · “CO 2 molecules absorb infrared light at a few wavelengths, but the most important absorption is light of about 15 microns,” says Kroll. Incoming light from the sun tends to have much shorter wavelengths than this, so CO 2 doesn’t stop this sunlight from warming the Earth in the first place.
The greenhouse effect: some of the infrared radiation from the Sun passes through the atmosphere, but most is absorbed and re-emitted in all directions by greenhouse gas molecules and clouds. The effect of this is to warm the Earth’s surface and the lower atmosphere.
Absorbed energy gets re-radiated the in the form of infrared, also known as longwave radiation. Infrared radiation is invisible to our eyes, but we feel it as heat. In the atmosphere, greenhouse gases and clouds absorb and re-radiate heat, affecting the temperature of our planet.
However, absorbed sunlight increases the temperature of Earth’s surface, and the warmed surface re-radiates as long-wave radiation (also known as infrared radiation). Infrared radiation is invisible to the eye, but we feel it as heat.
1 wrz 2016 · Solar radiation passes largely unhindered through the atmosphere, heating the Earth's surface. In turn, energy is re-emitted as infrared, much of which is absorbed by CO 2 and water vapour in the atmosphere, which thus acts as a blanket surrounding the Earth.
20 lip 2024 · The interaction of infrared radiation with GHG molecules, primarily CO 2, CH 4, and N 2 O, induces vibrational or rotational motions in these molecules. This internal motion imparts energy to the molecules that is radiated back into the atmosphere (Mitchell, 1989).
9 lis 2022 · Fundamental to understanding climate change is understanding the energy budget between solar and infrared radiation. Radiative forcing represents the energy imbalance. Current climate change is caused by an imbalance of about 1% of the global average energy budget.
