Dishonest Republican state legislators could force the presidential election into the House of Representatives, where under special voting rules the Republicans would certainly win.

Can we do anything to prevent this hijacking?

California's pollution-credit trading system is backfiring badly now that demand for electricity has crashed.

A steadily increasing tax would avoid some of these problems. It would not the shortfall of revenue if pollution surprisingly decreases, but we should consider that windfall of safety.

US citizens: call on Congress (and the conman) to end the monopolies in life-saving drugs, and pass the COVID-19 Emergency Manufacturing Act now.

Some kinds of Covid-19 virus tests give up to 30% false negatives. This means that almost 1/3 of the people actually infected will be erroneously judged not to be infected.

There is no Covid-19 vaccine yet, but European countries are discussing whether to require people to get vaccinated, and anti-vaxxers are already campaigning against it.

In the absence of a vaccine that has been tested, and thus in the absence of any information about how effective it would be and what side-effects it would have, there is no way to say anything rational about the question. This dispute reflects conflicting prejudices, nothing more.

If the vaccine is a DNA vaccine, and if it effectively modifies peoples genomes in a heritable way, that will raise an important issue of safety. We must make that decision carefully, not hastily. But if a non-DNA vaccine is developed. this issue won't arise.