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Earth Sciences Mar 5, 2025

The Antarctic ozone hole is healing, thanks to global reduction of CFCs

A new MIT-led study confirms that the Antarctic ozone layer is healing, as a direct result of global efforts to reduce ozone-depleting substances.

Space Exploration Mar 4, 2025

Q&A: Rocket launches are proliferating. What is this doing to the atmosphere?

Every few days now, a giant rocket blasts a fiery trail through the atmosphere, lofting satellites into orbit, carrying out space missions or performing other tasks. Since 2017, both the number of launches and the size of ...

Astronomy Feb 28, 2025

Mission accomplished for Integral, ESA's gamma-ray telescope

Today, the European Space Agency's gamma-ray telescope ends its observations. During its 22 years in space, Integral has reshaped our view of the most dramatic events in the universe. The high-energy observatory played a ...

Analytical Chemistry Feb 27, 2025

Are refrigerants safe? The lingering questions about the chemicals keeping us cool

A team of scientists at UNSW has discovered that some of the most important new refrigerants break down, in part, into persistent greenhouse gas pollutants, including compounds that have been banned internationally.

Earth Sciences Jan 31, 2025

Atmosphere's self-cleansing ability followed by long-term study

The Earth's atmosphere has strengthened its ability to remove air pollutants, including the potent climate-warming gas methane, according to research published in Nature Communications.

Earth Sciences Jan 15, 2025

Technology for oxidizing atmospheric methane won't help the climate, researchers say

As the atmosphere continues to fill with greenhouse gases from human activities, many proposals have surfaced to "geoengineer" climate-saving solutions, that is, alter the atmosphere at a global scale to either reduce the ...

Earth Sciences Jan 7, 2025

Earth's air war: Explaining the delayed rise of plants and animals on land

If you like the smell of spring roses, the sounds of summer bird song, and the colors of fall foliage, you have the stabilization of the ozone layer to thank for it. Located in the stratosphere, where it shields Earth from ...

Environment Jan 2, 2025

Is it possible to have an eco-friendly firework display?

Many of us will send off the old year and start 2025 with a bang. New Year's celebrations will vary in size from small back-garden firework displays to large-scale professional shows. Last year, London's main event released ...

Environment Dec 19, 2024

7 good things humanity did to combat climate change in 2024

Advocating for climate change action can sometimes feel like pushing a huge boulder up a hill. News headlines are filled with breaking climate records, while governments, including Australia's, are still approving new fossil ...

Earth Sciences Dec 13, 2024

Satellites capture dramatic increase in HFC-125, a potent greenhouse gas

HFC-125 is a greenhouse gas becoming a major contributor to global warming, and in the first study to use satellites to measure its concentration in the atmosphere, researchers found it has increased exponentially in the ...

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