Oct 18, 2011 — The Occupy Wall Street movement has been criticized for lacking focus — but its main slogan seems to be resonating. That slogan, "We are the 99 percent," highlights the issue of income disparity. It's something economist Jeffrey Sachs has been tracking for a long time.
Oct 29, 2007 — In his book, A Contract with the Earth, Newt Gingrich describes a conservative approach to conservation. He says it would focus more on technology-based, entrepreneurial solutions, not regulation, litigation and taxation.
Sep 10, 2007 — Bjorn Lomborg calls himself a "skeptical environmentalist." Critics say he is an anti-environmentalist. In his new book, Cool It, he argues that global warming is not so important that tens of billions of dollars should be spent trying to prevent it.