From here:
On March 31, some people will be sitting in the dark to express their “vote” for action on global climate change. Instead, you can join CEI and the thousands of people around the world who will be celebrating Human Achievement Hour (HAH). Leave your lights on to express your appreciation for the inventions and innovations that make today the best time to be alive and the recognition that future solutions require individual freedom not government coercion.
HAH is an annual event meant to recognize and celebrate the fact that this is the greatest time to be alive, and that the reason we have come is that people have been free to use their minds and the resources in their environment to experiment, create, and innovate. Participants in HAH recognize the necessity to protect the individual persons from government coercion, so that we may continue innovating and improving our lives and the world around us.
Many Anglicans, on the other hand, will be turning off their lights and sitting in the dark for an hour, where, no doubt, they will encounter numerous bishops in their natural habitat.
Not only Anglicans, but Roman Catholics,and members of other Protestant denominations. That said, however, there are still a few of us who agree with the idea of Human Achievement Hour. Unfortunately I was not at home at the time, or I would have ad all lights on, the air conditioner going and be cooking a late-ish dinner on the stove.