Tuesday, October 19

Earth shines less because of climate change | Digital Trends Spanish

The serious effects of global warming and climate change in the last 20 years have affected the Earth beyond the limits of what humans can perceive on the surface of the planet, since it has an effect on its relationship with the galaxy. , our house is getting dark.

How so is the Earth darkening ?: It turns out that a new study published in the journal Geophysical Research Letters indicates that there has been a significant drop in Earth’s reflectance, or albedo, in the past two decades.

That’s the equivalent of a 0.5% decrease in reflectance from Earth. The Earth reflects about 30% of the sunlight that shines on it.


“The fall in albedo came as a huge surprise to us when we analyzed the last three years of data after 17 years of near-flat albedo,” said Philip Goode, a researcher at the New Jersey Institute of Technology and lead author of the new study, referring to Earth’s brightness data from 1998 to 2017 collected by the Big Bear Solar Observatory in Southern California. When the latest data was added to the previous years, the dimming trend became apparent.

Specifically, there has been a reduction in bright, reflective low clouds over the eastern Pacific Ocean in recent years, based on satellite measurements made as part of NASA’s Clouds and Earth’s Radiant Energy System (CERES) project.

The most serious thing is that this failed reflectance process eventually means that the light from the Sun that the Earth absorbs stays in the oceans and thus increases the warming of the planet.

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