Guardian: The annual United Nations climate change conference kicked off Monday in Cancún, Mexico, and will continue through 10 December. Although a new global climate treaty to succeed the Kyoto Protocol does not yet appear to be on the horizon, it is possible the negotiators from 193 countries will make progress on other issues such as adaptation to global warming and stopping deforestation. As the Guardian‘s Michael Jacobs points out, rather than counting on an international agreement as a prerequisite for global action on climate change, individual countries need to make domestic economic commitments that they believe they can meet before signing a treaty. China, Brazil, India, South Africa, and Indonesia are among the countries that have already begun to commit themselves to individual action.
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
Get PT in your inbox
PT The Week in Physics
A collection of PT's content from the previous week delivered every Monday.
One email per week
PT New Issue Alert
Be notified about the new issue with links to highlights and the full TOC.
One email per month
PT Webinars & White Papers
The latest webinars, white papers and other informational resources.