20 years of greenhouse gas emissions

Depuis plus de 20 ans, nous émettons des gaz à effet de serre vers l’atmosphère de notre Terre. Jusqu’où irons-nous ? © Mike Mareen, Adobe Stock

This year Futura is celebrating its 20th anniversarye anniversary. An opportunity for the editorial board to take you to dig through its digital archives. Bring to light some topics that have created the history of our media. Your. Our. Subjects, like today’s, are becoming more and more sensitive …

Twenty years ago, scientists already cared about ours shows from Greenhouse gas. We must say that a few years earlier, in 1994, the Rio Convention set itself the goal of stabilizing the concentration of greenhouse gases (GHG). “At a level that prevents any dangerous anthropogenic disturbances of the climate system”. And in 2001, things seemed to be on track. In the category “Planet” de Futura – a new popular science medium then discovered under the name Futura-science -, we learned that in France, according to the Inter-Ministerial Mission for the Greenhouse Effect, greenhouse gas emissions were at the same level as in 1990. So, the carbon dioxide emissions (CO2) In 2001 increased by only 1.6% compared to 1990. How has the situation developed since then?

Let us first remember why we need to closely monitor greenhouse gas emissions. Because they are responsible for global warming which we know today. Scientists have not doubted this for a long time. To stabilize temperatures, it is now urgent to reduce greenhouse gas emissions. And even to reduce them to zero.

Let us return, then, to the course of our story. 2001: emissions are fairly stable on the French side and commitments remain so. However, as early as 2007, a United Nations (UN) report reported Fr. increasing greenhouse gas emissions in 40 industrialized countries between 2000 and 2005. With an overall growth of 2.6%, however, it should be noted that France was still a good student with drop in emissions 1.6%. And even the carbon footprint of consumers decreased between 1980 and 2010, according to INSEE data.

Exploding greenhouse gas emissions

The World Meteorological Organization (WMO) confirmed the sad trend in 2010. “Concentrations Greenhouse gas reached new peaks in the atmosphere and the rate of increase of these gases accelerated “, could we read. Widely questionable: Emissions CO2. Between 1990 and 2010, their concentration in the atmosphere increased from 280 to 389 parts per million (ppm). An increase of … 39%!

2012. same observation. And from new records. Increasing CO concentration2 in an atmosphere of 2.2 ppm. That’s more than the 2.02 ppm average over the last ten years. IN 2013, the increase was as high as 2.9 ppm! The rate at which OMM experts predicted the passage of a 400 ppm bar for 2015 or 2016.

In this video we discover how carbon dioxide (CO2) from fossil fuels accumulated in our atmosphere between 2011 and 2012. Artificially starting from zero to achieve an accumulation of 9 to 10 parts per million (ppm) CO2 !! © NOAA

Concentrations of CO2 continue to increase

2019 report from United Nations Environment Program (UNEP), however, specified that, in order to achieve the goals set by the Paris Agreement – namely to limit global warming anthropogenic at 1.5 ° C – we should now reduce our emissions by 7.6% per year during the decade 2020-2030.

By taking measurements in agricultural sector and primarily for livestock which is now responsible for a quarter of greenhouse gas emissions. But also in that of energy production, industry or transport. Or maybe even soon, digitally andInternet.

Especially since, far from decreasing, the concentration of CO2 in the atmosphere it continues to knock records. The 400 ppm threshold was first crossed in May 2013. And the average concentration exceeded this figure in 2015. In 2018, we approached 408 ppm. In May 2019, another symbolic ribbon was crossed, the 415 ppm one. From never seen 3 million years ago!!

In 2020 Covid-19 succeeded where everything had failed before. This is the origin of the reduction – unfortunately very accurate – of CO emissions.2 in the sectorenergy by almost 6%. This has not happened since World War II.

At the same time, some point to the possible deficiencies in the number of shows. Scientists have even identified 5.5 billion tons of CO2 it would not be included in the figures. It is still the equivalent of annual United States shows!

As a result, researchers from the National Weather Service of the United Kingdom (With Office) are already announcing that in 2021 the rate of CO2in our atmosphere it will fix 50% more than it used to before the industrial age. And the International Energy Agency (IEA) is no longer waiting peak emissions before … 2040!

Will we be able to make these predictions lie? That is all I hope for, both for us and our children. That we will finally become aware of the climate danger. Absolute needs for lifestyle changes together. To finally find, everyone, the serenity we lost along the way. Because it’s a bit like that, my idea of ​​happiness …

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