Benji Jones in Vox:
Over the last decade, dozens of companies and nearly all large countries have vowed to stop demolishing forests, a practice that destroys entire communities of wildlife and pollutes the air with enormous amounts of carbon dioxide. A big climate conference in Glasgow, in the fall of 2021, produced the most significant pledge to date: 145 countries, including Brazil, China, and Indonesia, committed to “halt and reverse” forest loss within the decade. Never before, it seems, has the world been this dedicated to stopping deforestation.
And yet forests continue to fall.
A new analysis by the research organization World Resources Institute reveals that deforestation remained rampant in 2022. More than 4 million hectares (about 10 million acres) of forests vanished from the tropics that year in places like Brazil and Central Africa, according to the analysis, which is based on data from the University of Maryland. That’s a Switzerland-size area of forest gone, WRI said. Alarmingly, the world lost 10 percent more tropical forest in 2022 compared to the previous year, indicating that countries are, on the whole, moving in the wrong direction. This is especially troubling considering that tropical forests are among the most important ecosystems on Earth. They help regulate weather, store vast amounts of carbon, and provide homes to the richest assemblages of wildlife on the planet.
More here.

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Setsuko Nakamura was 13 years old when the atomic bomb hit Hiroshima.
The multi-prize-winning theoretical physicist Giorgio Parisi was born in Rome in 1948. He studied physics at the Sapienza University in the city, and is now a professor of quantum theories there. A researcher of broad interests, Parisi is perhaps best known for his work on “spin glasses” or disordered magnetic states, contributing to the theory of complex systems. For this work, together with Klaus Hasselmann and Syukuro Manabe,
The war in Ukraine has resurrected the ultimate technocratic fantasy: a winnable nuclear war. Intellectuals at the Hoover Institution are urging American strategists to “think nuclearly again,” reestablishing the idea that nuclear weapons are tools to assert U.S. primacy over Russia and China. This isn’t just talk. The Bulletin of the Atomic Scientists recently noted “steadily increasing U.S. bomber operations in Europe”—some near the Russian border. Though most Americans are unaware of it, escalation toward nuclear conflict is already under way.
A 25-year science wager has come to an end. In 1998, neuroscientist Christof Koch bet philosopher David Chalmers that the mechanism by which the brain’s neurons produce consciousness would be discovered by 2023. Both scientists agreed publicly on 23 June, at the annual meeting of the Association for the Scientific Study of Consciousness (ASSC) in New York City, that it is still an ongoing quest — and declared Chalmers the winner. What ultimately helped to settle the bet was a key study testing two leading hypotheses about the neural basis of consciousness, whose findings were unveiled at the conference. “It was always a relatively good bet for me and a bold bet for Christof,” says Chalmers, who is now co-director of the Center for Mind, Brain and Consciousness at New York University. But he also says this isn’t the end of the story, and that an answer will come eventually: “There’s been a lot of progress in the field.”
Two new drugs for treating obesity are on course to become available in the next few years — and they offer advantages beyond those of the
Those of us who revere Octavia Butler’s work and have never stopped mourning her passing do so in part, I suspect, because we know that no matter what happens in this Universe there will never be anyone like Butler again—not as a person and certainly not as an artist. Like Toni Morrison, Butler was a literary eucatastrophe, (a sudden and miraculous grace: never to be counted on to recur), a literary Kwisatz Haderach (Butler loved Dune) that occurs so very rarely in a culture and only if it is lucky.
It’s somewhat amazing that cosmology, the study of the universe as a whole, can make any progress at all. But it has, especially so in recent decades. Partly that’s because nature has been kind to us in some ways: the universe is quite a simple place on large scales and at early times. Another reason is a leap forward in the data we have collected, and in the growing use of a powerful tool: computer simulations. I talk with cosmologist Andrew Pontzen on what we know about the universe, and how simulations have helped us figure it out. We also touch on hot topics in cosmology (early galaxies discovered by JWST) as well as philosophical issues (are simulations data or theory?).
Ecological collapse is likely to start sooner than previously believed, according to a new study that models how tipping points can amplify and accelerate one another.
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