How Would Just 2 Degrees of Warming Change the Planet? - Tekonoloji

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How Would Just 2 Degrees of Warming Change the Planet?

Why do we try to avoid this?

If the Earth gets warmer at 2 ° C we are destroyed. To prevent this, the United Nations signed the Paris Treaty. The Paris Treaty is an international treaty designed to keep the average global temperature above 2 ° C above the temperature in the period prior to industrialization (ie before the Yerkürenin factories have begun to emit greenhouse gases into the atmosphere).

It is a long period of 20 years and these two degrees are referenced in the policies and agreements of the Council of the European Union, the G8 (new name G7) and other countries and associations receiving such decisions.

What makes these two degrees so important?

Everything was in 1975, when he was an economist. William Nordhaus begins to see the warming of the planet as a threat to the global economy. "Can we control carbon dioxide?" He asked his colleagues at the International Institute for Applied Systems Analysis (a group promoting scientific discoveries across disciplines and international borders) at the International Institute for Applied Systems Analysis. At an average global temperature, Nordhaus says that an increase of 2 ° C, which can occur due to human-induced carbon dioxide, can change our climate in an unprecedented way for hundreds of thousands of years.

Where did an economist find 2 ° C? Nordhaus did not make it up, he made up his mind. Nordhaus knew carbon dioxide was heating the planet, and calculated what would happen if the concentration in the atmosphere doubled (about 2 ° C increase on a global basis). He also estimated that by the year 2030, the dangerous twin of 2 ° C would have been exceeded if the following values ​​were taken as basis.

Scientists are constantly warning us about the dangers that can be caused by increases in temperature due to human-induced greenhouse gas emissions for the next 20 years and beyond. In 1992, this dangerous climate was framed by the United Nations Framework Convention on Climate Change to stop human interaction, but it did not impose any stringent restrictions on emissions and rising global temperatures. It took an additional four years for the policy to appear at 2 ° C, and its proposal was brought up by the Council of Europe's environmental ministries. Finally, the United Nations endorsed these two-centigrade limits with the Paris Treaty in 2016 (more than 40 years after Nordhaus brought it to the agenda).

Two degrees may seem to you not too much. You probably do not even notice a two-degree fluctuation during an ordinary day. But climate change and global warming address the long-term trends.

During the twentieth century, the average global temperature was about 14 ° C, about one-tenth of a degree. Since 1880, the sphere has warmed to almost an exact degree, but it has been more than two-thirds of its heating since 1975 - the year that Nordhaus wrote the article. After that, every year in the 21st century, it was absolutely in the top 20 in terms of temperatures.

The year in which the last Earth was as hot as it is today was at least 11,000 years before today. 70% of our planet is covered with oceans, so much water warming requires a lot of energy, not even about the weather and the blacks. Having an average global warming of 2 ° C means that the temperature increases along the surface are much higher.

We feel the consequences of behaviors that we have done - that is why airs are worse than they were in the past. In 2017, Harvey Hurricane hit Houston, and human-induced climate change is probably more than ten times the cause of such unexpected rainfall. In fact, the results of the US National Climate Assessment's over-precipitation days during the past few days show that "since the 1950s, there has been an increase in all regions in each adjacent state". Droughts and heat waves have also intensified, such as in California, where there has been little rain in recent years, the ground has become more dry and there are major fires that can not be controlled.

If we warm up to 2 ° C, the world will become much drier, which will have an impact on economies, agriculture, sub-structures and weather patterns. Rising temperatures will damage eco-systems and non-adaptable species, including coral reefs and species in the Arctic Region. Coastal regions established in low places and all the small islands around the world face the risk of extinction due to the rise of sea levels that have come to fruition due to the continuous and faster dissolution of the Greenland ice sheet and the Arctic Region ice. 2 ° C will be decisive for the existence of all nations.

An Intergovernmental Panel on Climate Change - an organization of interstate conditions and causes - is currently working on the search for excitement in the world if the average temperatures are warmed by three, four, or more. In such a case, he said, "the extinction of the generations of the great species, the great risks of trust in the world and food, and the coming and going of the regions in the world."

Countries, such as the US, China and India, can only abandon CO2 emissions so that this critical 2 ° C limit on our planet is not exceeded. It does not seem very possible right now. According to studies conducted by the IPCC, 2 ° C will not be mixed in 95% of this critical limit in 2100 years and protection will begin. It is now possible to provide the power to reduce our emissions and make it possible. But our time is fast.

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