Sustain Our Earth

How strange that the development of many solar array fields has largely become an exercise in massive excavation, grading and stormwater management. This is ironic when we consider that such projects carry the “sustainable” tag.

The Cyclone Engine is a Rankine Cycle heat regenerative external combustion engine, otherwise known as a “Schoell Cycle” engine.   It creates mechanical energy by heating and cooling water in a closed-loop, piston-based engine system.  The process looks like this:

Officials said President Obama would announce new policy initiatives in the coming weeks, including the first limits on greenhouse gas emissions from new and existing power plants.

The secretary of state says the Obama administration is pushing ahead on climate solutions with China and the rest of the world -- and he wants your ideas for new initiatives.

Pandora’s Promise is the most important environmental feature film since An Inconvenient Truth. Its ow inconvenient truth? Unfairly maligned nuc

STOCKHOLM -- The World Bank says it will increasingly view its efforts to help developing countries fight poverty through a "climate lens." In a report released Wednesday, the international lending institution warned that heat waves, rising seas,...

The lawsuit that state and federal officials in Arkansas filed last week against ExxonMobil is unusual, pipeline experts say, because government agencies usually wait much longer—sometimes even years—before filing lawsuits against companies...

Corporate America worked hard to build massive loopholes into the tax code for itself, and by golly it is working just as hard to keep them. U.S.

Are traditional solar photovoltaic (PV) financing models dead? Are solar utilities dinosaurs, about to become extinct? For utilities, says Dirk Morbitzer, general manager of analysis firm Renewable Analytics, “the old times are gone.

Keystone is an "export pipeline" that will take tar sands oil from Alberta and pump it down to a tax-free zone in Texas and out to foreign markets.

The Ohio State University Center for Automotive Research (CAR) and Pompano Beach, Florida-based Cyclone Power Technologies will begin collaborating on an eco-friendly engine development and testing program.

CYCLONE POWER TECHNOLOGIESWHE-25 Engine SystemThe developer of the all-fuel, clean-tech Cyclone Engine recruited CAR to help with commercialization of its external combustion engine technology, specifically the company’s Waste Heat Engine (WHE) model. CAR will perform finite element and dynamic stress analysis of the engine, followed by independent durability testing and validation.

Plastic bags in Los Angeles may soon be a thing of the past.

There's a new determination among major players like China to tackle climate change, the World Bank president says

Zeroing in on black carbon may slow the effects of greenhouse-gas emissions.

Thousands of years later, breakwaters in Ancient Roman harbors are still intact. Modern formulas don’t come close. A mineral analysis reveals th

ANCHORAGE, Alaska (AP) — A heat wave hitting Alaska may not rival the blazing heat of Phoenix or Las Vegas, but to residents of the 49th state, the days of hot weather feel like a stifling oven — or a tropical paradise.

The government-appointed monitor overseeing mortgage practices as part of last year’s robo-signing settlement between five big U.S.

Young adults overwhelmingly value health insurance and don't believe they are too healthy to need it, according to survey data published Wednesday. The findings of the poll by the Henry J.