Earth Day Network has chosen “The Face of Climate Change” as the theme for 2013’s celebration on April 22. According to the group, which works with 22,000 partners in 92 countries, more than a billion people will take part in Earth Day events this year.
Available on and off since 1992, the federal Production Tax Credit (PTC) has bolstered the success of many alternative energy providers. The subsidy has been extended again, but only for a year, a "here today/gone tomorrow" situation that has made it tough for companies to forge ahead with confidence.
Dear EarthTalk: What is the "Production Tax Credit" and why is it so important to developing alternative renewable energy?-- Sean Gallagher, Boston, MA
Environmentalists and wind energy boosters breathed a sigh of relief this past January when Congress voted to reinstate the Production Tax Credit (PTC), a federal tax incentive for companies that generate renewable energy from wind, geothermal or “closed-loop” biomass (dedicated energy crops) sources.
At the Seacoast Science Center at Odiorne Point in Rye, visitors learn about the science and beauty of marine life and the Gulf of Maine. Myra Sallet is a 13-year-old volunteer who particularly likes working with younger kids who come to explore.
Some studies show organic foods to be no healthier and only marginally safer with regard to individual exposure to pesticides than non-organic foods. Nonetheless, choosing organic is a wise "better safe than sorry" strategy which also reduces pollution and conserves water and soil quality.
Many low income or minority groups have learned to raise their voices and stand up against the discriminatory locating of hazardous waste sites, polluting factories and other sources of bad air quality and compromised waterways and soils. Pictured: an environmental justice rally in the Rogers-Eubanks community of North Carolina.
Dear EarthTalk: I understand that the “environmental justice” movement seeks to protect the poor and non-white communities from being unfairly targeted to host activities like sewage treatment plants, landfills and polluting factories. Have there been notable victories? -- P. Silver, Peekskill, NY
Many of the world’s fisheries are in crisis today due to years of overfishing, pollution and habitat destruction. According to the Natural Resources Defense Council, some of the most popular fish -- including cod (pictured here), snapper and tuna, are dangerously depleted yet continue to be overfished.
Dear EarthTalk: I understand that many of the world’s fisheries are on the brink of collapse, “fished out,” to put it bluntly. How did this happen and what is being done about it?-- Mariel LaPlante, New Orleans, LA
Dear EarthTalk: What is “biomass” and why is it controversial as a potential source of energy?-- Edward White, New Bedford, MA
Biomass is plant matter that is burned as a source of energy. Fallen or cut wood that is burned for heat is one primary form of biomass, but another includes plant or animal matter that is converted into biofuels.