How life has changed on Earth over 20 years according to NASA

(ORDO NEWS) — NASA has published a video that shows in just a few minutes how life has changed on the planet over the past 20 years.

The video shows our planet, its “breathing”, seasonal changes. So, you can see how periodically increase and decrease snow cover at the North and South Poles, as well as the “green” areas of the Earth.

The visualization was done using images from various satellites. In particular, the SeaWiFS device, launched by NASA in 1997 and collecting data on ocean life, as well as such agency’s meteorological satellites as Terra, Aqua and Suomi NPP.

Scientists are tracking how plant life has changed over the past 20 years to better understand how ecosystems are responding to changing climatic conditions. For example, research shows that rising sea surface temperatures make life difficult for phytoplankton (photosynthetic organisms living in water); This means that there are fewer organisms in the ocean that can absorb carbon dioxide, a greenhouse gas that is the main trigger of global warming. The video also shows a consequence of this process – the gradual reduction of the Arctic ice.


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