Ed. note: This is the final edition of the Mulch. To keep up with the best environmental coverage the progressive media has to offer, follow The Media Consortium on Twitter or connect with us on Facebook.

The super rich are different from you and me. For one thing, their tax rates are lower.

According to IRS statistics, the nation's top 400 taxpayers increased their average income by 392% and slashed their average tax rate by 37% between 1992 and 2007, Dave Gilson reports in Mother Jones. Furthermore, when you factor in payroll taxes, the tax rate for Americans earning $370,000 is nearly equal to the rate for those making between $43,000 and $69,000 a year.

This week, the House voted to shut down the carbon regulation program at the Environmental Protection Agency, but the Senate rejected four different measures that would have stopped or delayed EPA action. The EPA, as mandated by the Supreme Court, has been moving forward with regulations that would require carbon polluters to apply for EPA permits and to use the best available method to start limiting carbon emissions.

Fashionable pundits like to say that the Republican Party has shifted its focus from "social conservatism" (e.g., banning abortion, shoving gays back in the closet, teaching school children that humans and dinosaurs once walked the earth hand-in-claw) to fiscal conservatism (e.g., tax cuts for the rich, slashing social programs). But is that really true? Tim Murphy of Mother Jones argues that the old culture war issues never really went away. Rather, the Republicans have simply rephrased their social agenda in fiscal terms.

Arizona's business leaders, frustrated by the deep financial fallout of increasingly radical immigration proposals, successfully swayed state lawmakers into defeating five extremist anti-immigrant bills.

New America Media's Valeria Fernández reports that 60 executives from the likes of WellsFargo bank and U.S. Airways penned an open letter to state Senate President Russell Pearce last week, urging him to leave immigration policy to federal government. Julianne Hing at Colorlines.com has posted the letter in full, but here's the gist:

About 100,000 people gathered in Madison, Wisconsin to protest Gov. Scott Walker's new anti-collective bargaining law. The state senate hurriedly passed the bill without a quorum last Wednesday. Roger Bybee of Working In These Times reports:

Stricter immigration enforcement and reduced economic opportunities in Arizona has pushed many undocumented immigrants out of the state to look for work.

While restrictionist lawmakers, whose stated objective over the last year has been to drive attrition through enforcement, are satisfied, it's not exactly the outcome they've been waiting for. Rather than return to their home countries, most immigrants are instead relocating to surrounding states -- a trend that's prompting legislators in other states to approach immigration reform in radically different ways.

Oklahoma absorbs Arizona emigrants

President Obama is taking heat from all sides this week for his 2012 budget proposal, which proposes increased funding for immigration enforcement and border militarization. While immigrant rights advocates are predictably up in arms over the proposal, House Republicans are (somewhat uncharacteristically) demanding significant cuts to border security funding -- on the grounds that the Obama administration’s efforts to secure the border have been ineffective and fiscally irresponsible.

Obama’s future immigration priorities remain counterproductive