Remarkable, this: What Is The Cause Of Climate Change
| HOMELAND SECURITY ASSIGNMENT | 6 hours ago · The subject of climate change shouldn't be a political issue. It's the science of Earth. A warmer atmosphere can also cause the jet stream to behave differently, leading to more significant. 1 day ago · Progressive lawmaker Alexandria Ocasio-Cortez confused millions of Americans Tuesday when she bizarrely asserted that “trampling of indigenous rights” and “trampling of racial justice” is the cause of climate change. “The climate crisis is a crisis born of injustice. A crisis born at the pursuit. 2 days ago · The U.S. and China agreed on April 17, to work together on tackling climate change. Above, Joe Biden walks past solar panels while touring the . |
| What Is The Cause Of Climate Change | 516 |
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Russia data includes the Soviet Union throughbut only the Russian Federation afterward. In fact, climate models suggest that greenhouse warming can explain virtually all of the temperature change since According to the most recent report by the Intergovernmental Panel on Climate Change, which assesses published scientific literature, natural drivers and internal climate variability can only explain a small Tne of lateth century warming. Another study put it this way: The odds of current warming occurring without anthropogenic greenhouse gas emissions are less than 1 inBurning fossil fuels also produces particulate pollution that reflects sunlight and cools the planet.
How do we know climate change is really happening?
Ia estimate that this pollution has masked up to half of the greenhouse warming we would have otherwise experienced. Greenhouse gases like water vapor and carbon dioxide serve an important role in the climate. Without them, Earth would be far too cold to maintain liquid water and humans would not exist! Because of their molecular structure, greenhouse gases temporarily absorb some of that outgoing infrared radiation and then re-emit it in all directions, sending some of that energy back toward the surface and heating the planet.
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Scientists have understood this process since the s. Greenhouse gas concentrations have varied naturally in the past. Over millions of years, atmospheric CO2 levels have changed depending on how much of the gas volcanoes belched into the air and how much got removed through Thhe processes.
On time scales of hundreds to thousands of years, concentrations have changed as carbon has cycled between the ocean, soil and air.
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Today, however, we are the ones causing CO2 levels to increase at an unprecedented pace by taking ancient carbon from geologic deposits of fossil fuels and putting it into the atmosphere when we burn them. Sincecarbon dioxide concentrations have increased by almost 50 percent. Methane and nitrous oxide, other important anthropogenic greenhouse gases that are released mainly by agricultural activities, have also spiked over the last years.
We know based on the physics described above that this should cause the climate to warm.
Whqt upper layers of the atmosphere have actually cooled, because more energy is being trapped by greenhouse gases in the lower atmosphere. We also know that we are the cause of rising greenhouse gas concentrations — and not just because we can measure the CO2 coming out of tailpipes and smokestacks. We can see it in the chemical signature of the carbon in CO2.]
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