ozone

More Harmful UV Rays May Have Reached Earth as Life Evolved on Land

More Harmful UV Rays May Have Reached Earth as Life Evolved on Land

Sunlight is essential for life on Earth, but it is possible to have too much of a good thing. The sun’s ultraviolet (UV) radiation can damage molecules like proteins and cause skin cancer in humans, and new research shows that the Earth may have been exposed to 10 times more of this radiation than previously thought during parts of the past 2.4 billion years. 

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    Ozone-Depleting Substances May Have Driven Arctic Warming, Study Finds

    Ozone-Depleting Substances May Have Driven Arctic Warming, Study Finds

    The world awakened to the hole in the ozone layer in 1985, which scientists attributed it to ozone-depleting substances. Two years later, in Montreal, the world agreed to ban the halogen compounds causing the massive hole over Antarctica. Research now shows that those chemicals didn’t just cut a hole in the ozone layer, they also […]

    Saving the Ozone Layer 30 Years Ago Slowed Global Warming. Can Similar Cooperation Now Solve the Climate Crisis?

    Saving the Ozone Layer 30 Years Ago Slowed Global Warming. Can Similar Cooperation Now Solve the Climate Crisis?

    The Montreal Protocol, a 1987 international treaty prohibiting the production of chlorofluorocarbons (CFCs) to save the ozone layer, was the first successful multilateral agreement to successfully slow the rate of global warming, according to new research. Now, experts argue that similar measures may lend hope to the climate crisis. “By mass CFCs are thousands of […]

    Ozone Depleting Gas Declines After Rising For Years

    Ozone Depleting Gas Declines After Rising For Years

    An ozone depleting gas is on the decline after rising since 2012, according to preliminary data reported by scientists yesterday, as the New York Times reported. Scientists were previously shocked to learn that levels of a banned gas, the most abundant form of chlorofluorocarbons (CFCs) known as CFC-11, which was supposed to have been worldwide […]

    Record-Breaking Heat Wave Bakes Australia

    Record-Breaking Heat Wave Bakes Australia

    Australia is sweating through yet another record breaking heat wave, with the past four days among the country’s 10 hottest days on record, the Bureau of Meteorology announced Tuesday. The town of Port Augusta in South Australia hit 48.9 degrees Celsius (approximately 120 degrees Fahrenheit) on Tuesday, the highest temperature since record keeping began there […]

    Singapore ‘Smoking Ban’ Is an Odd Way to Reduce Air Pollution

    Singapore ‘Smoking Ban’ Is an Odd Way to Reduce Air Pollution

    By John Bryson On Jan. 1, Singapore introduced a “no smoking zone” along a three kilometer (approximately 1.9 mile) stretch of Orchard Road—one of the city’s busiest shopping districts. It sounds controversial—restricting people’s right to smoke in public spaces, as a way of tackling air pollution and improving public health. But smoking is not actually […]

    UN: Healing Ozone Layer Shows Why Environmental Treaties Matter

    UN: Healing Ozone Layer Shows Why Environmental Treaties Matter

    After decades of thinning, Earth’s ozone layer is slowing recovering, the United Nations (UN) said in a report released Monday, highlighting how international co-operation can help tackle major environmental issues. The ozone layer, which protects humans and other species from the sun’s highly hazardous ultraviolet radiation, has been declining since the 1970s due to the […]

    Scientists Link Southern Ocean’s Rapid Warming to Human Activity

    Scientists Link Southern Ocean’s Rapid Warming to Human Activity

    In the past few decades, the Southern Ocean surrounding Antarctica has gotten less salty and has warmed at roughly twice the rate of global oceans overall. Now, in a new study, scientists found convincing evidence that these trends are the result of two human influences: climate change from greenhouse gas emissions and the depletion of […]

    Judge Orders EPA to Comply With Clean Air Act in Ozone Lawsuit

    Judge Orders EPA to Comply With Clean Air Act in Ozone Lawsuit

    A federal judge ordered the U.S. Environmental Protection Agency (EPA) to take action to fight air pollution entering New York and Connecticut from five other states, Reuters reported. The EPA had until August 2017 to complete plans for states that failed to adapt to new ozone air-quality standards set by the agency in 2008, but […]