[**Wizualizacja rocznego cyklu poziomu CO2 w atmosferze od VI 2020 do ... (@Fake_R)

Wizualizacja rocznego cyklu poziomu CO2 w atmosferze od VI 2020 do VII 2021 r.

Opis ze znaleziska:

Film pokazuje cykl gromadzenia się w atmosferze CO2 w ciągu jednego roku. Każdego roku roślinność i oceany pochłaniają około połowy emisji CO2 spowodowanych przez człowieka. Jednak, corocznie ok 2,5 ppm CO2 pozostaje w atmosferze powodując stały wzrost stężenia, który naukowcy śledzą od lat 50-tych.

Szerszy opis:

This video shows the accumulation of atmospheric carbon dioxide (CO2) during a single calendar year. Every year, the world’s vegetation and ocean absorb about half of human-caused CO2 emissions, slowing the rate of greenhouse gases entering the atmosphere.

However, around 2.5 parts per million (ppm) remain in the atmosphere every year, causing a steady rise in concentrations that scientists have been tracking since the 1950s, at surface stations. (The term "parts per million" refers to the number of carbon dioxide molecules per million molecules of dry air.)

During the months of June to September (summer months in the Northern Hemisphere), global CO2 concentrations tend to be the lowest, because Northern Hemisphere plants actively absorb CO2 from the atmosphere via photosynthesis, which is the process of turning sunlight, carbon dioxide, and water into food (sugars) and oxygen. During Northern Hemisphere fall and winter months, much of the CO2 is re-released into the atmosphere, due to respiration, and can be seen building up.

By June and July 2021, plants again draw CO2 out of the atmosphere, but notably higher amounts remain there in contrast with the previous year. The daily rhythm of CO2 is apparent over our planet's largest forests, such as the Amazon rainforest in South America and the Congo rainforest in Central Africa.

In addition to highlighting the buildup of atmospheric CO2, the video shows how interconnected the world’s greenhouse gas problem is. NASA’s unique combination of observations and models plays a critical role in helping scientists track CO2 increases to better understand their climate impact.