BBC: A plan to levy charges on flights in EU airspace based on carbon emissions has been criticized by the US, Canada, and China—and China has barred its airlines from participating. The plan was implemented at the beginning of the year. The EU has estimated that airline passengers will be charged €2–12 more per flight as a result of the plan. China claims that the plan would cost Chinese airlines €95 million a year if they took part. Although the EU could forbid Chinese airlines from flying in EU airspace, doing so could damage its relationship with China. Ultimately, the issue may have to be resolved by the World Trade Organization or another international body.
The finding that the Saturnian moon may host layers of icy slush instead of a global ocean could change how planetary scientists think about other icy moons as well.
Modeling the shapes of tree branches, neurons, and blood vessels is a thorny problem, but researchers have just discovered that much of the math has already been done.
January 29, 2026 12:52 PM
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