Dear EarthTalk: What are some cool apps that work with a mobile phone that can help me get in better touch with the environment?
— Mitchell Brown, Troy, Mich.
Not surprisingly,
Dear Earth Talk: What is the environmental impact of those "K-Cups" everyone seems to be using nowadays to make coffee at both home and office?
— Chris B., Stamford,
Dear EarthTalk: If "cap and trade" has worked so well in Europe for reducing greenhouse gas emissions there, why haven't we tried something similar here in
Dear EarthTalk: How is it that global warming could cause an increase in health problems and disease epidemics? Do we have any evidence that it is already happening?
— Jim Merrill,
Dear EarthTalk: Should those of us who care about our health and the planet be concerned about the new trend in genetic engineering called synthetic biology?
— Chrissie Wilkins, Bern, NC
Dear EarthTalk: What are "dirty fuels" and why are they so called?
— Bill Green, Seattle, Wash.
The term "dirty fuels" refers to fuels derived from tar
Dear Earth Talk: What is the latest prognosis for wind energy to command a larger piece of the renewable energy pie?
— Peter M., Akron, Ohio
Hydroelectric sources of power dwarf
Dear Earth Talk: I thought Japan's 2011 Fukushima nuclear plant meltdown would have sealed nuclear power's fate, but I keep hearing otherwise. Can you enlighten?
— Jacob
Dear EarthTalk: Will I really be able to save money and energy in the long run by shelling out hundreds of dollars now for a so-called "smart" thermostat?
Dear EarthTalk: What is the Obama administration's America's Great Outdoors initiative and what does it hope to accomplish?
— Doug St. James, New York, NY
President Obama
