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There is hardly time to stop climate change

There is hardly time to stop climate change


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By Xavier Caño Tamayo

What we know for sure is that in the last two thousand years, the sea and its temperature were stable. Until the industrial revolution of the 19th century. Then the carbon dioxide emission soared and the sea level rose. Today, the UN Group of Experts has calculated that in this century the oceans will rise 44 centimeters on average over 1990 levels. And it is a lot to climb.

A recent study on the consequences of climate change, designated C3E, concludes that sea levels will rise on the Spanish coasts in the 21st century, for example, from 60 to 80 centimeters over the rise from 1986 to 2005. This will be the case if they are not reduced greenhouse gas emissions. According to this report, the highest rise in water will be in the Ebro, Guadalquivir and Guadiana deltas and, if climate change is not stopped, in 2050 Spanish beaches will have receded by 20 to 40 meters. Let's imagine what that will mean. In addition, there will usually be huge waves and strong winds in Spanish ports and coastal infrastructures. The rise of the sea, the increase of the waves and the strong winds will promote violent gales and the coastal flooding will be more frequent and intense.

The damage caused so far by gas emissions (rising sea levels, increased acidity of the seas or melting of glaciers and ice from the poles) will be a growing problem if drastic measures are not taken to reduce and stop the emission of greenhouse gases. According to UN experts, if not remedied, the temperature would rise to 4.8 ° C by 2099, when the maximum bearable global temperature rise calculated by science is 2 ° Celsius. Will we leave our descendants a habitable world?

The warming is undeniable and since 1950 many changes in the climate are unprecedented in previous centuries. The Earth's surface is much hotter than at any time before 1850, and each of the last three decades has been warmer than the last as heat waves become more frequent, intense, and long-lasting.

Faced with this situation, the UN encouraged countries to voluntarily decide on their volumes to reduce greenhouse gases. But it has been a failure and the gas reductions have been so ridiculous that we are heading towards a global warming of 3ºC. And a 3ºC increase is multiplying by three and a half times the climate change suffered so far according to the same experts. More violent and enormous hurricanes, more melting of glaciers and Arctic and Antarctic ice, great rise in sea level, torrential floods and enormous droughts with their corresponding great fires.

To stop climate change, there is no other way than to reduce greenhouse gas emissions. Abandon energy with fossil fuels and replace it with clean and renewable energy. In addition to protecting forests, stopping industrial logging that reduces the planet's tree mass.

All of this will address COP 21, the United Nations climate change convention, in Paris from November 30 to December 11. There, measures should be agreed to reduce 80% of greenhouse gas emissions by 2050. So that the global temperature does not exceed 2º Celsius. And that means that States must change their energy policies and reduce polluting energies until they are eliminated. No more excuses.

Until today, the alleged international measures against climate change have been useless. You just have to really cut your greenhouse gas emissions until you end them. There is no other, because it is no longer an exaggeration to say that we are risking the future. And, indeed, the present.

CCS


Video: Plastic Pollution: How Humans are Turning the World into Plastic (May 2022).