Humanity healed the ozone hole. Can we do the same for climate change?

The 2019 ozone hole. Credit: NASA The year was 1987, and Earth’s shield against the giant thermonuclear reaction in the sky was failing. Human-made chemicals in aerosol cans and refrigeration were eating up a thin protective layer of atmospheric gas called ozone, and heavy doses of radiation from the sun were leaking through. Scientists warned … Read more

Climate change makes living at the coast riskier, but more people keep coming

Credit: Pixabay/CC0 Public Domain Among the counties that trace the coastline of the contiguous United States, two very different pictures emerged from the latest census. One shows how fled after devastating hurricanes, fueled by warmer-than-normal water in the Gulf of Mexico, slammed into their communities. The other shows how coastal counties attracted millions of people … Read more

Air pollution can amplify negative effects of climate change, new study finds

Credit: Unsplash/CC0 Public Domain The impacts of air pollution on human health, farming, and agriculture differ drastically depending on where on the planet the pollutants are emitted, according to a new study that could potentially incentivize certain countries to cut climate-changing emissions. Led by the University of Texas at Austin and the University of California … Read more

Trees can’t outrun climate change. Should humans give them a lift?

Credit: Pixabay/CC0 Public Domain One tree at a time, David Saville has made it his life’s work to bring back West Virginia’s red spruce forests—and maybe help preserve the species hundreds of miles farther north while he’s at it. Last year, Saville spent weeks hiking up peaks like Panther Knob, Dolly Sods and Top of … Read more

The aviation industry needs to overhaul its response to climate change

Credit: CC0 Public Domain Aviation’s growing impact on the climate crisis requires radical solutions that may update the industry, according to a new Nature commentary article from the University of California San Diego School of Global Policy and Strategy. Globally, the industry generates roughly 1 billion tons of CO2 per year, which is comparable to … Read more

Climate ‘points of no return’ may be much closer than we thought

Climate tipping points — the “points of no return” past which key components of Earth’s climate will begin to irreversibly break down — could be triggered by much lower temperatures than scientists previously thought, with some tipping points potentially already reached. There are also many more potential tipping points than scientists previously identified, according to … Read more

Record of Antarctic ice sheet response to climate cycles found in rock samples

UCSC researchers analyzed two rock samples collected in Eastern Antarctica in which alternating layers of calcite and opal reflect cyclic changes in the subglacial environment. Sample MA113 is 9 centimeters thick and comes from Mount Achernar Moraine on the side of Law Glacier. Credit: Gavin Piccione By analyzing unusual rock samples collected years ago in … Read more

We may be underestimating just how bad carbon-belching SUVs are for the climate, and for our health

Testing on-board emissions from SUVs in Sydney. Credit: Robin Smit Australia’s love for fuel-hungry and fuel-inefficient SUVs is hampering our ability to bring transport emissions down. SUVs make up half of all new car sales last year, a National Transport Commission report revealed this week—up from a quarter of all sales a decade ago. As … Read more

A third of Aussies fear losing their homes to climate change

Credit: Unsplash/CC0 Public Domain Six in 10 Australians (62%) expect climate change will have a severe effect in their area over the next 10 years and globally across 34 countries more than 71%, including a majority in every single country, expect the same, a new study conducted by Ipsos for the World Economic Forum finds. … Read more

Climate change jeopardizes health care services, report says

With Kaiser Permanente’s Santa Rosa Medical Center in the background, a flame from an open gas valve burns at the Journey’s End mobile home park on Oct. 9, 2017, in Santa Rosa, Calif. Dr. Suzy Fitzgerald helped with the evacuation of 122 patients from Kaiser Permanente’s Santa Rosa Medical Center nearly five years ago, as … Read more