Saturday, June 3, 2023

Half the planet’s climate will be completely changed at the end of the century

Rope of Climate change It has only contracted in recent years: extreme events such as widespread drought, extreme heat waves, torrential rain or melting glaciers are harbingers of what is to come.

The scientific community has been warning about this for some time, especially through the Intergovernmental Panel of Experts on Climate Change (IPCC). One of his latest messages, released this spring, is both brilliant and urgent. “Let’s act now or it will be too late.” Every tenth of a reduction in the increase in the thermometer is important for the planet.

Climate maps will have to be redrawn in 2100

Now, a new study published in future of earth which simulates Earth’s future by 2100, showing the extent to which gradual changes in local-scale temperature and precipitation could alter climate: By the end of the century, the climate of almost half of the planet will change significantly.

Be careful with the data: these changes will be so great that We’ll have to recreate the maps first conceived in the 1880s gather Science alert.

“By the end of the century, 38-40% of the world’s land surface is projected to be in a climate zone other than the present,” wrote the researchers, led by climate scientist Paul Diermeier of George University. Virginia Mason.

Based on the climate models the researchers used to generate their projections of future global change, those estimates could grow even higher, so that About 50% of the Earth’s surface may be adrift in an unknown climate zone.

Using the latest generation climate models —which predicts faster rates of global warming—that this “new” climate is even more apparent 80 years from now.

to plot the expected changes Scientists used Köppen-Geiger maps System developed by German-Russian climatologist Vladimir Köppen in 1884, which divides the Earth into 5 climatic zones based on temperature, precipitation and seasons. These are used and updated to model the distribution and evolution of species.

The uncharted territory: 89% of Europe and about 66% of North America could change climate zones by 2100

This projection—which simulates temperature at the top, as it is more complex with precipitation— Covers only land except oceans —in uncharted territory and highly affected by global warming—, and to Antarctica due to paucity of data.

What does the report point toe Tropical climate will increase from 23% to 25% of the land surface by 2100. Besides, Dry area will increase to 34% from the present 31%: Further desertification will undermine food security and spread mosquito-borne diseases to new areas.

Biggest displacement towards new climate These will be produced in the cold climate regions of Europe and North America. 89% of Europe and about 66% of North America could change climate zones by 2100.

People in other regions, such as Africa, will also see an increase in temperature, but they will feel the change within the boundaries of their current climate zone and in the form of extreme weather events.

So far The most drastic changes will be those affecting the polar region, which covered about 8% of the planet’s land surface between 1901 and 1930, and which has already shrunk by 6.5% with about 1.2 °C of global warming. Has gone. Which the earth has experienced so far.

“Since the beginning of the 20th century, 14.77% of Earth’s land surface has changed its climate classification, with the largest changes seen in North America, Europe and Oceania,” the article states.

This result is based on calculations made in 2015 using climate models available at that time: according to, In 2010, approximately 5.7 percent of Earth’s total land area had shifted toward warmer and drier climate types than in 1950.

Nation World News Desk
Nation World News Desk
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