Grassroots groups across the country are taking up the issue of global warming. In Washington, hundreds of environmentalists rallied in front of the Capitol on Tuesday for the first-ever Climate Crisis Action Day. In Massachusetts, activists are walking across the state this week to raise awareness about global warming. In New Hampshire, over 134 cities and towns have passed resolutions asking the federal government to address climate change and to develop research initiatives to create innovative energy technologies. And planning is underway for the first National Day of Climate Action on April 14. Nine hundred fifty events and rallies are already scheduled. Organizers are predicting April 14 will be the country’s largest grassroots environmental protest since Earth Day 1970.