Nature: Senators Joe Lieberman and John Kerry took the wraps off their climate bill yesterday. The bill’s goal is stepwise reduction in US carbon emissions that reaches 80% by 2050. To attain that goal, the bill provides for a so-called cap and trade system of emission allowances that can be bought and sold and whose total is kept below a target limit.
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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