The reduction of sulfur pollution worldwide due to clean air policies is one of the factors that could accelerate global warming more than expected.
“Elchi” reports that burning fossil fuels causes sulfur pollution in addition to carbon dioxide.
While carbon dioxide warms the planet, sulfur pollution creates small particles in the atmosphere that reflect sunlight back into space, partially compensating for the warming effect of carbon dioxide.
Sulfur emissions are decreasing rapidly due to policies aimed at curbing gas pollution from power plants and ships.
Meanwhile, carbon dioxide emissions remain near record levels. Scientists believe that the loss of sulfur’s cooling effect is accelerating global warming.
The planet’s energy balance is changing
The difference between the solar energy absorbed by the planet and the heat radiated back into space is known as the Earth’s “energy imbalance.” When the Earth absorbs more energy than it loses, temperatures rise. Reports show that this imbalance has nearly tripled in the last two decades.
As oceans warm, low-level cloud cover decreases. The replacement of bright clouds with the dark ocean surface causes more sunlight to be absorbed and temperatures to rise. It is noted that in the last two decades, the oceans have warmed more than twice as fast as in the period between 1960 and 2005.
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