Author: craigshields

I’m working my way through a collection of esteemed essays on a variety of topics, and I happened upon a brilliant piece on environmentalism: Jedediah Purdy’s “Shades of Green.”   A professor of law at Duke University, Purdy ably makes the point that there …

When We Talk about the “Environmentalist Movement” Exactly What Do We Mean? Read More »

Tagged with: , , ,

I spend a few hours every day working for a client that offers a unique approach and capability in the solar thermal hot water space.  For those who may be having trouble visualizing this, shown here is what is called …

Solar Thermal Hot Water Read More »

Tagged with: , ,

Here’s a wonderfully entertaining crash-course in U.S. history that aims, appropriately enough, at the founding of the colonies in the early 17th Century.  I was intrigued that the settlements in Massachusetts and Virginia had radically different conceptions of how people …

The Colonial Settlements Had Different Viewpoints on Human Rights Read More »

Tagged with: , ,

This year is the 200th anniversary of the confirmation of the conservation of energy, marked by the publication of British engineer Peter Ewart’s paper “On the Measure of Moving Force” in 1813.  Of course, the consequences of this are enormous.  For one, …

Conservation of Energy Sent Science in a New Direction Read More »

Tagged with: , ,

As always, I’m willing to be wrong.  But I believe that wave energy, i.e., that which is derived from the wind that blows over the ocean and creates the relatively small bit of kinetic energy that becomes the ups and …

Can Wave Energy Be Cost-Effective? I Doubt It. Read More »

Tagged with: , ,

We’ve been hearing about various processes for converting waste-tires to energy, fuels, and other valuable stuff (e.g., carbon black) for decades now.  And yes, there really are a few people with pyrolysis technology that really works; my friends from the …

Waste-Tire-to-Energy — An Advancement Read More »

Tagged with: , ,

I wanted to write a short post to introduce a fellow I have known indirectly for a few years now: Paul Grist of Archon Energy, a developer of cutting-edge run-of-river hydro projects in California.  I know what you’re thinking: You …

Archon Energy Develops Run-of-River Hydro Projects Read More »

Tagged with: , , ,

There are quite a few options after moving to utilize possible renewable energy sources around your home, such as wind turbines, solar panels and more. In most cases using solar panels is the popular choice for heat, lighting and electrical …

From Guest Blogger Heather: Renewable Home Energy Tips For Your New Home Read More »

Tagged with: , , , ,

Here’s an informative interview with South African activist and professor Patrick Bond, who spoke with Democracy Now!‘s Mike Burke at the March for Climate and Social Justice in Warsaw.  As he discusses here, Dr. Bond believes, as I do, that …

Carbon Trading — A False Solution Read More »

Tagged with: , , , ,

Here’s the executive summary of the IEA’s (International Energy Agency) 2013 World Energy Outlook.  No surprise:  it expresses concern about climate change from our unabating reliance on fossil fuels, which represents about two-thirds of our total greenhouse gas emissions.  Although …

2013 World Energy Outlook Read More »

Tagged with: , , , ,