Last week, CNN announced plans to host a climate crisis town hall with the Democratic presidential candidates on September 4. MSNBC scheduled a multiday climate change forum with the presidential hopefuls later that month. In both venues, some version of the perpetual question will undoubtedly be raised: “How will you pay for the costs of ...

Every day, millions of online diarists, or “bloggers,” share their opinions with a global audience. Drawing upon the content of the international media and the World Wide Web, they weave together an elaborate network with agenda-setting power on issues ranging from human rights in China to the U.S. occupation of Iraq. What began as a ...