Climate 411

Fossil Fuels and Biofuels

This is Part 3 of a three-part series on Vehicle Fuels and Technology.

1. Plug-in Cars: The Lowdown
2. Hydrogen Fuel Cell Vehicles
3. Fossil Fuels and Biofuels


The author of today’s post, Sheryl Canter, is an Online Writer and Editorial Manager at Environmental Defense.

This last post in our series on Vehicle Fuels and Technology gives an overview of fossil fuels and their alternatives. You will see how crude oil pumped from the ground is transformed into everything from solvents to street tar. And you’ll learn which biofuels can be substituted for fossil fuels.

Read More »

Posted in Cars and Pollution / Read 3 Responses

Posted: No Idling!

The author of today’s post, Sheryl Canter, is an Online Writer and Editorial Manager at Environmental Defense.

Forward-looking New Jersey has done it again with its "Stop the Soot" initiative – an outreach program to educate people about the impact of idling car and truck engines. Idling spews pollutants into the atmosphere and burns a surprising amount of fuel. As noted on our driving tips page, idling for more than 10 seconds uses more gas and creates more global warming pollution than simply restarting your engine.

Read More »

Posted in Cars and Pollution / Read 6 Responses

Beat Global Warming, a Slice at a Time

The author of today’s post, Sheryl Canter, is an Online Writer and Editorial Manager at Environmental Defense.

When you talk about the consequences of global warming, people can feel overwhelmed and fear there’s no solution. But there is! And a new game illustrates it.

It’s based on work by Princeton University’s Stephen Pacala and Robert Socolow, which they describe in their paper “Wedges”: Early Mitigation with Familiar Techology [PDF]. Their study showed that existing technologies can lower emissions sufficiently to stop global warming. (Bill discussed their work in his post on green technologies.)

Pacala and Socolow identified 15 existing technologies that they refer to as “wedges”. Only seven are needed to stabilize greenhouse gas emissions, so we can choose what combination to use.

To help people, particularly students, understand wedges and explore different scenarios, Princeton University has created the Stabilization Wedge Game, where teams of players can “build a portfolio of stabilization strategies and assess their impacts and costs.”

Try it with your friends or family — you’ll come away understanding better how we can stop global warming. Here’s the background page, and here are the instructions and the game [PDF] – you set it up by printing out and cutting up colored wedges.

Posted in Energy / Read 1 Response

Ensuring Carbon Offsets are Real

The author of today’s post, Sheryl Canter, is an Online Writer and Editorial Manager at Environmental Defense.

Carbon offsets are a good idea that, unfortunately, without guidelines, can be implemented badly. The basic idea is to reduce and then offset the carbon emissions produced by your lifestyle by funding projects that reduce carbon emissions elsewhere. This works because, from a global warming perspective, it doesn’t matter where the carbon comes from. A reduction anywhere reduces the global total.

But how do you know a given offset is truly reducing carbon emissions?

Read More »

Posted in Economics, Greenhouse Gas Emissions / Read 4 Responses

Synergies in Efficiency plus Renewables

The author of today’s post, Sheryl Canter, is an Online Writer and Editorial Manager at Environmental Defense.

When we think about climate change and the burning of fossil fuels, the discussion often centers around alternative sources of energy. But another key element is energy efficiency – simply using less power. A recent report published titled "The Twin Pillars of Sustainable Energy" says the two should be considered together.

When public policy takes both energy efficiency and renewable energy into account, there can be significant synergies. The report is over 50 pages long with many detailed case studies, but you can find a good summary of the findings on the World Business Council for Sustainable Development Web site.

Posted in News / Read 3 Responses

Are Hydrogen Cars the Answer?

This is Part 2 of a three-part series on Vehicle Fuels and Technology.

1. Plug-in Cars: The Lowdown
2. Hydrogen Fuel Cell Vehicles
3. Fossil Fuels and Biofuels


The author of today’s post, Sheryl Canter, is an Online Writer and Editorial Manager at Environmental Defense.

Hydrogen fuel cell vehicles got a big boost when President Bush made them part of his 2003 State of the Union address:

Tonight I’m proposing $1.2 billion in research funding so that America can lead the world in developing clean, hydrogen-powered automobiles… With a new national commitment, our scientists and engineers will overcome obstacles to taking these cars from laboratory to showroom, so that the first car driven by a child born today could be powered by hydrogen, and pollution-free.

That generated a lot of interest in hydrogen cars! So what are they, and can they become mainstream in the next 20 years?

Honda FCX fuel-cell car.
Honda FCX fuel-cell car.

Read More »

Posted in Cars and Pollution / Read 23 Responses