Question

what is the chief causes for changes in the atmosphere?
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Answer 1

Answer:

Carbon dioxide

Human activities, such as the burning of fossil fuels and changes in land use, release large amounts of CO2, causing concentrations in the atmosphere to rise. ... Atmospheric carbon dioxide concentration has risen from pre-industrial levels of 280 parts per million by volume (ppmv) to over 401 ppmv in 2016

Answer 2

Answer:

When the sun's energy is reflected back into space, Earth avoids warming. ... Many factors, both natural and human, can cause changes in Earth's energy balance, including: Variations in the sun's energy reaching Earth. Changes in the reflectivity of Earth's atmosphere and surface.

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