It doesn’t get much more visionary and ambitious than Al Gore’s speech last week on energy and climate change, and this sentence in particular:

Today I challenge our nation to commit to producing 100 percent of our electricity from renewable energy and truly clean carbon-free sources within 10 years.

If you missed it, you can find the full text here or read a helpfully annotated version here.

My only quibble with this fantastic speech was that Gore said little about the transportation sector, which is the second largest contributor to U.S. greenhouse gas emissions.

But that’s a minor point. Go read what he said, if you haven’t already. We can meet demand for electricity using clean, renewable sources. We do not need new nuclear reactors or coal-fired power plants.

Gore turned up at the Netroots Nation conference over the weekend, and Mooncat at Left in Alabama posted some videos from his speech.

Andrew Villeneuve of the Northwest Progressive Institute liveblogged Gore’s speech in Austin here for those who don’t have time to watch the video.