Impact of CO2 in the Atmosphere?

[izentrop]

https://www.co2.earth/

[moinsdewatt]

Global emissions of CO2 have increased again in 2018


5 December 2018 Reporterre.net

On Wednesday, December 4, the 57 research institutions participating in the Global Carbon Project (GCP) publish the Global Carbon Budget 2018 in Nature, Earth System Science and Environmental Research Letters. The budget examines in depth the amount of fossil fuels that countries around the world are burning and what happens to associated CO2 emissions.

According to the Global Carbon Project projections, carbon dioxide (CO2) emissions are expected to increase by 2,7% in 2018, mainly due to sustained growth in oil and gas consumption. In 2017, carbon emissions were already on the rise (+ 1,6%) after a stagnation of three years.



The increase in emissions is mainly driven by Asia (China + 4,7% in 2018 after + 1,7% in 2017, India + 6,3% after + 4% in 2017), but also by the United States (+ 2,5%, after - 0,5% in 2017), while Europe seems to have reduced its CO2 emissions from 0,7% to 2018 (uncertainty range of - 2,6% to + 1,3%), after an increase of 1,4% in 2017. For the rest of the world, the evolution is estimated at + 1,8% in 2018. Data by country are not yet available (for France they indicated an increase of 2% in 2017).

"The increase in fossil CO2 emissions in 2018 places us on a warming trajectory well beyond 1,5 ° C," says Corinne Le Quéré, president of the High Council for Climate and director of the Tyndall Center for Climate Change Research. University of East Anglia, which led this study. It is not enough to support renewable energies. Fossil fuels must be phased out and decarbonisation efforts must be extended to the whole economy. "

In addition, the authors of the study found that the growth rate of CO2 in the atmosphere was slightly lower than that of 2016, due to higher carbon uptake by natural sinks. CO2: the ocean and the continents.

"While 2016 was a year marked by El Nino, the climatic context of 2017 has allowed a strengthening of the natural carbon sinks that are the ocean and the terrestrial biosphere, explains Roland Séférian, research engineer at the National Center for Meteorological Research (CNRM ) and co-author of the study. In 2017, these wells absorbed about 6,3 GtC or 18% more than 2016. "

https://reporterre.net/Les-emissions-mo ... te-en-2018

[izentrop]

Why CO2 emissions continue to rise despite the renewable energy boom? https://www.futura-sciences.com/planete ... bles-74244

The Paris agreement on climate seems decidedly lead in the wing. After three years of plateau and a moderate increase of 1,6% of CO2 emissions in 2017, they have come out again with an increase of 2,7% in 2018, the largest increase since 7 years, according to the last report of the Global Carbon Project. A slippage largely due to China (+ 4,7%), the United States (+ 2,5%) and India (+ 6,5%), while Europe (considered as unique country) is rather a good student with a slight decrease in 0,7% emissions expected in 2018.

[Exnihiloest]

Why CO2 emissions continue to rise despite the renewable energy boom? https://www.futura-sciences.com/planete ... bles-74244
...

I quote :
Everything would be fine if electricity production could be ensured entirely by clean energy. However, this is far from being the case. Admittedly, their share should drop from 25% to 45% in 2040, according to the International Energy Agency (IEA). But since global electricity demand will increase by 60% by then, they will not be enough to cover the increase. In addition, these renewable energies suffer from a major flaw: their intermittence. As they cannot be stored, it is necessary to keep operational thermal capacities to take over in the absence of wind or sun. "

We can never say it enough. But the conclusion is bad:

"With the deployment of renewable energies, we will have to multiply by three or four the capacity of gas plants in France, Germany or the Netherlands by 2050"

We must put back nuclear power, not gas.