People once again propose geoengineering to reflect sunlight into space as a way to counteract global heating.

However, ocean acidification would continue unabated, with the effect of eventually wiping out all coral, and all molluscs with shells. Many species of sea animals depend on coral reefs, and they would be wiped out too. The food supply for a billion people would be lost, just as plants are producing less protein due to the higher CO2 levels.

Schools are now invading student's privacy through cheating-detection systems.

I would not object to a school's running my papers through something like Turnitin, as long as they did not tell Turnitin who wrote it, or even say that all my papers were written by the same student.

However, I would never let the nonfree proctoring software onto my computer. (Besides which, it would not run on my operating system.) I would be willing to take the test on the university's computer, running whatever software the university happens to run, since the exam is communication with the university.

An amendment to the treaty that ended production of ozone-destroying chemicals could delay global heating for a while.

This would give civilization a breather, but would not by itself save us.

US citizens: call on Democratic leaders, donors and consultants not to work for Senator Manchin, who voted to confirm Kavanaugh.

If you sign, please spread the word!

Since the FOSTA advertising censorship law was passed, more sex workers are working on the street, making them vulnerable to arrest, violence, and subjugation by pimps.

Finding clients through the internet used to enable them to avoid these dangers.