The Guardian (August 28)
The Atlantic meridional overturning circulation (Amoc) “was already known to be at its weakest in 1,600 years as a result of the climate crisis.” Scientists believe its collapse would be catastrophic, but previous studies showed this was unlikely before 2100. Newer studies, with an extended horizon, are troubling. They “show the tipping point that makes an Amoc shutdown inevitable is likely to be passed within a few decades, but that the collapse itself may not happen until 50 to 100 years later.”
Tags: 2100, Amoc, Atlantic, Catastrophic, Climate crisis, Collapse, Inevitable, Scientists, Shutdown, Tipping point, Weakest
Washington Post (May 14)
Plastic production is estimated to create roughly 5% “of all greenhouse gas emissions… more than all shipping or the entire airline industry.” But that estimate only “accounts for gases released when companies drill for oil and gas, transport it to refineries, turn it into plastic and mold it into products.” It ignores factors such as “how microplastics in the ocean and soil disrupt the natural cycles that pull carbon dioxide out of the atmosphere and cool the planet.” Though “scientists have long known that making plastic warms the planet,” plastic may ultimately “be heating the Earth even more than we realized.”
Tags: 5%, Airline industry, Atmosphere, CO2, Disrupt, Drill, Gas, GHG emissions, Microplastics, Mold, Natural cycles, Ocean, Oil, Plastic, Production, Products, Refineries, Scientists, Shipping, Soil, Transport
CNN (August 3)
“A record-breaking heat wave unfolding at what should be the coldest time in Earth’s coldest place has scientists concerned about what it could mean for the future health of the Antarctic continent, and the consequences it could inflict for millions of people across the globe.” Since mid-July temperatures have been up to 50°Fahrenheit hotter than usual “over parts of Antarctica and unseasonable warmth could continue through the first half of August.”
Tags: Antarctica, Coldest, Consequences, Earth, Future, Heat wave, Inflict, July, Record breaking, Scientists, Temperatures, Unfolding, Unseasonable
Washington Post (April 19)
“Earth’s record hot streak might be a sign of a new climate era.” Existing models are coming up short as scientists struggle “to explain how the planet could have exceeded previous temperature records by as much as half a degree Celsius (0.9 degrees Fahrenheit) last fall.” Efforts over the next quarter or so may determine “whether Earth’s climate has undergone a fundamental shift — a quantum leap in warming that is confounding climate models and stoking ever more dangerous weather extremes.”
Tags: Climate, Climate models, Confounding, Dangerous, Earth, Era, Existing models, Hot streak, Quantum leap, Records, Scientists, Struggle, Temperature, Warming, Weather extremes
Time (October 12)
Of the Antarctica’s “162 ice shelves, 68 show significant shrinking between 1997 and 2021, while 29 grew, 62 didn’t change and three lost mass but not in a way scientists can say shows a significant trend” according to a new study. “All told, Antarctic ice shelves lost about 8.3 trillion tons (7.5 trillion metric tons) of ice in the 25-year period….That amounts to around 330 billion tons (300 billion metric tons) a year.”
Tags: 1997, 2021, Antarctica, Ice shelves, Mass, Scientists, Significant shrinking, Trend
BBC (July 5)
“The world’s average temperature reached a new high on Monday 3 July, topping 17 degrees Celsius for the first time.” This marks “the highest in any instrumental record dating back to the end of the 19th century.” Scientists attribute the record high to “El Niño and mankind’s ongoing emissions of carbon dioxide.” With El Niño about to enter its hottest phase, “scientists believe that more records will be shattered as the summer goes on and El Niño gains strength.”
Tags: 17 degrees, CO2, El Niño, Emissions, High, Hottest phase, Record, Scientists, Shattered, Strength, Summer, Temperature
BBC (May 17)
“There’s now a 66% chance we will pass the 1.5C global warming threshold between now and 2027. The chances are rising due to emissions from human activities and a likely El Niño weather pattern.” This would not necessarily mean that “the Paris limit had been broken,” especially if the temperature falls back under the threshold in subsequent years. “Scientists say there is still time to restrict global warming by cutting emissions sharply.”
Tags: 1.5C, 2027, Broken, El Niño, Emissions, Global warming, Human activities, Paris limit, Scientists, Temperature, Threshold, Weather pattern
Newsweek (May 11)
“Business leaders are particularly enthralled by AI’s growing capabilities,” but the general public is unsold. “Two-thirds of American adults—across all income and education levels—don’t trust generative AI and believe it presents a threat to humanity.” The urgent challenge must be addressed. “As was the case at the dawn of the nuclear age, we all have a role to play in demanding governance of this new technology. Scientists, along with society more generally, have made it clear that now is the time.”
Tags: AI, Business leaders, Education, Enthralled, General public, Generative, Governance, Growing capabilities, Humanity, Income, Scientists, Society, Technology, Threat, Trust
Wall Street Journal (February 10)
European scientists have set a “nuclear-fusion energy world record” and the “findings suggest this approach can be scaled-up for use in power plants.” The experiment successfully “generated 59 megajoules of fusion energy for five seconds,” but “the researchers weren’t able to overcome a major obstacle: generating more energy than they had to put into the experiment.” A scaled-up version looks set to do so as early as 2025. Currently “35 firms globally are racing to be the first to create net-energy machines and to commercialize them by delivering electricity to the power grid.”
Tags: 2025, Commercialize, Electricity, Energy, Europe, Net-energy machines, Nuclear fusion, Obstacle, Power grid, Power plants, Scientists, World record
USA Today (December 13)
“A devastating tornado outbreak across five states Friday night left dozens of people dead and reduced hundreds of homes to rubble, and some scientists say this may be the harbinger of future tragedies as the planet warms.”
Tags: Dead, Five states, Future, Harbinger, Homes, Outbreak, Planet, Rubble, Scientists, Tornado, Tragedies
