Some still believe that the global warming we are seeing is the result of some natural fluctuation. But new work now shows that it is greenhouse gas (GHG) emissions that are upsetting the Earth’s energy balance.
godIt is well oiled a priori. she receives , the . And to maintain a certain balance, she also thinks about it. Through her clouds, her oceans, her and even his lands. But in recent decades, the mechanism seems to be stalled. the Keep streaming to us from But the Earth doesn’t send much into space. The balance of energy balance is seriously skewed. Temperatures are rising. Sea level rises. the Unleashed.
to me, this is a result (Ko2). But some still doubt. Call the natural variations. so simple ‘climate noise’ Scramble recordings made in a very short time.
Important work by my classmate Chef Priam Ragerman. Less than 1% probability that the positive trend of energy imbalance on Earth occurred naturally. https://t.co/ubzhXOfvIU
– Jane Smith (@janeEsmyth) 28 July 2021
Our greenhouse gas emissions are involved
From (US), however, today provides new evidence of human influence in . Satellite observations made between 2001 and 2020 show that the energy imbalance on Earth is getting worse. and the that they were able to apply these values, and that there is a less than 1% probability that this trend can be explained by natural variations in the climate system.
“This calculation gives us direct evidence that human activities modify the Earth’s energy budget.”
The Earth is relentlessly trying to adjust the flow of energy it receives from the Sun with the flow of energy returning to space. She is looking for a balance in her energy budget. Already, models have suggested that human activities act as disturbances in this system. Today, researchers announced that they have finally come to see firsthand how our activities can tip the scales in the direction of.
Article byPublished on 03/29/2021
If the ground is currently rising, it is becauseIt has caused a disturbance in the climate system. by . At least that’s what scientists tell us. For several years now, this phenomenon has appeared in their models. Today, they were finally able to observe him directly.
We now have the first continuous, near-real-time observations of how humans are increasing the greenhouse effect on Earth, which was developed by Tweet embed and university partners. The research directly demonstrates how human activities are responsible for climate change.https://t.co/L0OkPkGstGpic.twitter.com/WwvxruwBfg
– NASA Earth March 25, 2021
For a better understanding, remember that the light our planet receives from the sun is partially reflected off the surface or even from the atmosphere and thus returned to space. The rest helps warm the earth. Then it is re-emitted in turn towards space. But part is being sucked into the atmosphere by clouds and celebrities. Then he returned to the surface to warm him a little more.
The share of human activities in the impact
In 1997, Ceres Project Tools (clouds and earthenergy system) on board the satellite. Since then, they have measured both the amount of energy entering and that appears. These data revealed the energy imbalance of our planet.
But to really determine the role of human activities in all of this, according to researchersI have an idea. They first calculated the imbalance caused by all known natural fluctuations accurately and based on appropriate measurements – with respect to water vapor, a potentially “natural” greenhouse gas, for example, and thus relied on the instrument’s measurements (Infrared Atmosphere Probe) on board the satellite (NASA). Once that number was generated, they subtracted it from the total value given by Ceres. The rest corresponds to anthropogenic influence.
The researchers concluded from their calculations that human activities were responsible for the increase in radiative forcing by about 0.5 W/m.2 Between 2003 and 2018. The increase is mainly due to greenhouse gas emissions. Aerosols seem to have less effect.
The method used by NASA researchers in the future could allow for near-real-time monitoring — with only a four-year lag, the researchers say — of the radiative forcing and its anthropogenic part. One way to plan how our emissions will affect, but also to assess the effectiveness of implemented mitigation measures. To provide more accurate forecasts on future.
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