Are Polar Bears Really Disappearing As A Result Of Global Warming?
Some say that polar bears are going to disappear in 50 years, but Alaskan officials insist their populations are recovering. What’s the real story?
EarthTalk Q&A
If you have an electric or plug-in hybrid car, you’re paying for electricity
When you compare battery to gasoline power, electricity wins hands down. A 2007 study by the non-profit Electric Power Research Institute (EPRI) calculated that powering a plug-in hybrid electric vehicle (PHEV) would cost the equivalent of roughly 75 cents per gallon of gasoline—a price not seen at the pump for 30 years.
I don’t eat meat, for a variety of ethical and environmental reasons
Unlike dogs and other omnivores, cats are true (so-called “obligate”) carnivores: They meet their nutritional needs by consuming other animals and have a higher protein requirement than many other mammals. Cats get certain key nutrients from meat—including taurine, arachidonic acid, vitamin A and vitamin B12—that can’t be sufficiently obtained from plant-based foods.
What is the “green cities” movement?
Urban areas all over the world are striving to lessen their environmental impacts by reducing waste, expanding recycling, lowering pollution and greenhouse gas emissions, and expanding open space. Pictured: Curitiba, Brazil,
I’m a musician and am curious about what the guitar industry
Though it has not received a lot of press to date, the industry is on the case—in part for the sake of its own survival, and thanks to the hard work of a handful of green groups, guitar makers and wood suppliers.
What are some of the leading proposed technological
While most of the world fixates on how to reduce the amount of carbon dioxide (CO2) and other greenhouse gases we emit into the atmosphere, scientists and engineers around the world are busy working on various “geo-engineering” technologies—many of which are highly theoretical—to mitigate global warming and its effects.
Doesn’t Cold Weather Negate Global Warming Theory?
Doesn’t Cold Weather Negate Global Warming Theory?
How Are Cheetah Populations Faring These Days?
What’s happening with wild populations of cheetahs, the fastest land animals on Earth?
What is “microfinance” and how does it help poor countries and preserve the environment?
The brainchild of Grameen Foundation founder Muhammad Yunus, microfinance is a form of banking whereby financial institutions offer small loans to the poor. The idea behind the concept, which originated in Bangladesh
What is the so-called “smart grid” I’ve been hearing about, and how can it save energy and money?
The smart grid concept is predicated on a two-way flow of energy —- and information —- between electricity generators and end users. The system not only delivers power to end users as needed, depending on demand;