Recently, the U.S. Chamber of Commerce has been one of the loudest voices against a climate change bill. But now they have formidable opposition from … some of the members of the U.S. Chamber of Commerce.

It looks like the Chamber started lobbying on this issue without checking with some of their largest members —  like Johnson & Johnson and Nike — who support a carbon cap. Now the Chamber is getting called out in the press. Oops.

Here's the story from Politico: "Chamber under fire on warming"

As Tony wrote earlier, the House subcommittee working on climate legislation celebrated Earth Week with a packed schedule of testimony.

One of the more interesting participants was Mayor John Fetterman, from tiny Braddock, Pa., who has become a national champion in the fight to cap carbon pollution. He did a great job explaining that for communities like his, a cap on carbon will be an economic lifeline (see the video). He was joined on the panel by Nat Keohane, EDF's chief economist.

Here are some wrap-ups:

• Over at PowerShift, Danny Marx live-blogged the day of testimony.
• The hearings were noticed back in Pennsylvania, too. Read what the Pittsburgh Post-Gazette wrote about the ads Mayor Fetterman did with EDF and his trip to Washington.
• And taking the broad view, Jimmy Seidita posted on Huffington Post that there's only one must-do to save the planet: support the Obama administration's efforts to limit carbon emissions.

We'll hear more testimony today, including appearances by former GOP Senator John Warner and Al Gore, and next week the subcommittee starts the tough work of marking up the bill.

We have some folks from EDF down at the carbon cap bill hearing today.  Follow us on Twitter at www.twitter.com/EnvDefenseFund to keep up with the good, the bad, and the ugly!

Today, I am heading to Capitol Hill with John Fetterman, mayor of Braddock, Pa.  Mayor Fetterman recently lent his voice to Environmental Defense Action Fund’s "Carbon Caps=Hard Hats" ad campaign, which calls on Congress to pass climate change legislation.

On this Earth Day, the House Energy and Commerce Committee is holding hearings centered around the American Clean Energy and Security Act of 2009 (ACES), and they asked the mayor to come talk about jobs.

Braddock used to be a booming steel town. When the steel manufacturing sector left in the 1970s, Braddock gradually slumped, falling from a population of 20,000 to 2,000.

When John Fetterman first came to Braddock, he saw potential, thinking not as an environmentalist, but as a citizen wanting to revitalize a community. He sees Braddock, and other cities that depend on steel (like Akron, Ohio, and Detroit, Mich.,), ready for economic growth. He has a vision of restoring jobs that left with the steel industry. And what can trigger that growth is a cap on carbon.

So today, the mayor is on Capitol Hill to tell Congress that there are jobs in renewable energy and steel, and if they pass a carbon cap, there will be jobs in Braddock, Pa.

Marc Gunther was kind enough to write a post on his blog about our latest campaign for a carbon cap.  Unfortunately, he also called the green jobs debate "intellectually dishonest."  Below, Environmental Defense Fund's Executive Director, David Yarnold, replies.

Marc,

Glad to see more attention to this issue as Congress gears up for its historic effort to pass a cap on carbon emissions. Opponents are hard at work to limit public debate to one side of the ledger; we’re shining the light on the other.

What we’re not doing is predicting the number of jobs a cap will create. Better yet, we’re showing the jobs that are here right now. We’re showing the people that want them, and businesses that are ready to create more of them when Congress caps carbon. You can see them for yourself at www.lesscarbonmorejobs.com

One of the thousands of companies you will find there is Dowding Machining, which is putting hundreds of laid-off autoworkers back to work building wind turbines in Michigan — the state with the highest unemployment rate in the nation. Mayor John Fetterman, featured in our ads, wants to do the same thing for steelworkers in Braddock, Pa.

How many jobs will we create? It's up to us as a nation. Will we take the lead, revitalizing existing manufacturing industries and creating new ones? Or will we settle for the status quo, see our factories shuttered, and end up importing the low-carbon technologies of the future from China and Europe?

For years, the U.S. was the worlds leading producer of solar cells, but now we rank fifth in production behind Japan, China, Germany and Taiwan. They’re not the sunniest of places; they’ve just made renewable energy a priority.

What will the costs be? The transition to clean energy will not be free – but every credible economic analysis shows that our economy will enjoy robust growth under a carbon cap. And contrary to opponents who spent a decade trying to muddy the science on climate change (and having failed that are now trying to muddy the economics), household costs will be small – about a dime a day for household utility bills, based on Department of Energy estimates. That dime buys a lot: cleaner air, good jobs, less foreign oil, and a safe climate.

This morning, Congressmen Henry Waxman (D-Ca.) and Ed Markey (D-Ma.) released a 600-page draft and put their committee on the path to passing climate legislation this year.  The details will be worked out in the legislative process, but this is great progress.

If Congress succeeds in passing a cap on carbon emissions, we will address global warming and pump billions of dollars into clean energy and new jobs. If we fail — well, let's not fail.

Here's the response from EDF's president, Fred Krupp:

Chairmen Waxman and Markey are experienced legislators who have focused on exactly the right issues to quickly build consensus and allow Congress to pass a strong bill this year.

We applaud the Chairmen for moving forward boldly and deliberately with their proposal for comprehensive legislation, and we look forward to working with them, the congressional leadership, and the Obama administration to help refine and pass a bill this year.

In case you missed it, washingtonpost.com featured a set of graphics about a carbon cap on its home page all last weekend. A couple of them looked very familiar to us. Take a look.

We've been using a graph that tracks the price of emitting acid rain (sulfur dioxide) pollution for years now — like on this page, on how a cap works. Which of these illustrations do you think are most useful?

I was also intrigued by a post by Eric de Place over on Grist. He describes a cap on carbon pollution as a "magic self-adjusting carbon tax." It's a nice explanation of a cap's price flexibility, which is one of its key advantages.

The president said:

But to truly transform our economy, protect our security, and save our planet from the ravages of climate change, we need to ultimately make clean, renewable energy the profitable kind of energy.

So I ask this Congress to send me legislation that places a market-based cap on carbon pollution and drives the production of more renewable energy in America.

Key players are getting right to work to move strong global warming legislation through Congress. This morning, an impressive lineup of CEOs and environmental leaders announced a consensus blueprint for U.S. climate policy. It's built around a cap on the pollution that causes global warming. See details on the USCAP site.

And right afterward, Congressman Henry Waxman, the new chair of the House Energy and Commerce Committee, is convening the first major climate hearing of the year. You can follow the hearing on the committee's site.

The Washington Post describes the announcement in a detailed story. We'll add links to other noteworthy stories as they come in.

Update – More news stories:

From The Hill: "Waxman to push global warming bill"
From the AP: "Waxman promises quick action on climate"

Nat Keohane and I have been participating in the "Carbon Tax vs. Cap-and-Trade" debate over on Bulletin of the Atomic Scientists. From Round 3, which addresses the international aspects:

A cap-and-trade system allows for the creation of a global carbon market. Such a market would provide the mechanisms and flexibility necessary to achieve the environmental goals at the lowest cost and the incentives for other countries to join. A tax does neither, while requiring much more harmonization across countries.

This post is by Gernot Wagner, Ph.D., an economist in the Climate and Air program at Environmental Defense Fund.