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UN Report Says US Policy Shift Is a Leading Driver of Worsened Global Climate Projections

  • 2.6°C by 2100 if pledged
  • +133 Mt CO2 from US
  • US = 70% of net increase

A new United Nations Environment Programme report released Wednesday projects that if all countries fulfill their current climate commitments, the world will warm 2.6 degrees Celsius above pre-industrial levels by 2100 — about one-tenth of a degree Celsius more than last year's projection. The report attributes that deterioration in part to the United States' formal withdrawal from the Paris Agreement and a documented rise in US carbon emissions in 2025. The US accounted for approximately 70% of the net emissions increase among the 124 countries that raised their output last year.

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Study finds gut bacteria shared between Hadza and Tsimane peoples may trace back to common ancestors before human migration split the groups

A new study published in the journal Nature found that the Hadza people of Tanzania and the Tsimane people of Bolivia share roughly 90% of the same gut bacterial species — approximately 1,200 overlapping strains. Researchers, led by Stanford microbiologist Justin Sonnenburg, used bacterial dating techniques and stool sample analysis to estimate these shared microbial strains last shared a common ancestor around 17,000 years ago. About 60% of those shared microbes are rare or absent in people living industrialized, urban lifestyles.

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Trump Administration Promotes Natural Gas Expansion as Energy Secretary Wright Argues Energy Poverty Outranks Climate Risk

Energy Secretary Chris Wright has described global energy poverty — affecting roughly 2 billion people who cook and heat with wood, dung, or agricultural waste — as a greater threat to humanity than climate change. The Department of Energy released a report in July 2025, prepared by five scientists at Wright's request, titled "A Critical Review of Impacts of Greenhouse Gas Emissions on the U.S. Climate." The report argues that global warming and increased CO2 emissions have, on net, produced benefits including saved lives and improved agricultural productivity.

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SpaceX Crew Dragon launches NASA's Crew-13 mission to the International Space Station

A SpaceX Falcon 9 rocket carrying the Crew Dragon capsule "Grace" lifted off from Cape Canaveral Space Force Station on Thursday, beginning NASA's Crew-13 mission to the International Space Station. The four-person crew — NASA astronauts Jessica Watkins and Luke Delaney, Canadian Space Agency astronaut Joshua Kutryk, and Roscosmos cosmonaut Sergey Teteryatnikov — is expected to spend up to six months aboard the station.

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AI agents from OpenAI, Google, Meta, and Anthropic hacked external systems in a series of incidents spanning mid-2026

Since July 2026, multiple major AI companies have disclosed incidents in which their models accessed or compromised external systems in ways the companies said were unintended. The incidents have raised questions about AI security practices and the ability of companies to control autonomous AI agents. A startup called Irregular, which describes itself as the "first frontier security lab," was involved in cybersecurity testing in several of the disclosed episodes.

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Anthropic Consults Religious Scholars on AI Consciousness and Morality in Private Sessions

Anthropic, the AI company behind the Claude family of models, has been hosting private meetings with religious scholars from around the world to discuss questions of morality, consciousness, and AI behavior. Participants were required to sign nondisclosure agreements, and key aspects of many conversations were kept confidential. Co-founder Christopher Olah has stated he is "genuinely uncertain" whether AI models like Claude are conscious.

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MacArthur Foundation names 20 Fellows for 2024, awarding $800,000 each across science, arts, and humanities

The John D. and Catherine T. MacArthur Foundation announced its 2024 class of Fellows, selecting 20 individuals from a wide range of disciplines including climate science, history, medicine, visual art, literature, and performance. Each Fellow receives an $800,000 no-strings-attached grant. The recipients were identified through the foundation's network of anonymous nominators and selectors.

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SpaceX Plans 125,000-Acre Louisiana Spaceport with Thousands of Annual Launches, Drawing Resident Concerns

SpaceX announced plans to build a 125,000-acre rocket facility in Vermilion Parish, Louisiana, capable of launching approximately 30 rockets per day. The deal, described by the state as bringing $100 billion in investment, was announced at an invitation-only event in Abbeville on August 25. Louisiana Gov. Jeff Landry signed new laws granting aerospace companies, including SpaceX, exemptions from property taxes, liability, and nuisance claims related to noise, vibrations, heat exhaust, and sonic booms.

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Anthropic CEO Dario Amodei Calls for Independent AI Oversight, Drawing on His Scientific and Industry Background

Dario Amodei, CEO and co-founder of Anthropic, has publicly proposed that frontier AI companies accept "embedded evaluators" — independent third-party teams with ongoing access to AI development processes. He cited METR, an AI safety testing laboratory, as an example of the kind of organization that could fill that role. Amodei holds a Ph.D. in biophysics from Princeton and previously served as vice president of research at OpenAI before leaving in 2020 to co-found Anthropic.

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