To advance the campaign to curb global heating, stop feeling guilty and trying to make small decreases in your own use of fossil fuel, and join efforts to change the system that makes everyone live wastefully.

The exception to "stop feeling guilty" is for activities that make profligate use of fossil fuels. For instance, to have a private jet, a large boat, a mansion, or a child, are things you can and should avoid.

The same advice applies to the campaign against nonfree software. People often write to me asking me to forgive them for using some nonfree software. But I don't ask them to apologize for this; I ask them to support campaigns against nonfree software, such as the GNU Project