Adolph L. Reed Jr. and Merlin Chowkwanyun (Penn): Race, Class, Crisis: The Discourse of Racial Disparity and its Analytical Discontents. Joshua Zingher and M. Steen Deirdre M. Bowen (Seattle): Meeting Across the River: Why Affirmative Action Needs Race and Class Diversity. Thomas (SUNY-Binghamton): Segregation and Neighborhood Level Racial Heterogeneity: The Structure of Racially Polarized Voting. Jessica L. West (Yale): 12 Racist Men: Post-Verdict Evidence of Juror Bias. George B. Shepherd and Joanna Shepherd (Emory): Baseball’s Accidental Racism: The Draft, African-American Players, and the Law. Why we're at war with ourselves: Daniel Honan on understanding racism as an introduction to psychology. A review of Is Marriage for White People?: How the African American Marriage Decline Affects Everyone by Ralph Richard Banks. The unbelievers: An article on African-American atheists. How Herman Cain killed black Republicanism: One day the GOP will get a legitimate black conservative voice — that day hasn't come. A review of Opting Out: Losing the Potential of America’s Young Black Elite by Maya A. Beasley. A review of Why Don’t American Cities Burn? by Michael B. Katz. The foreword to Critical Theories of Race and Racism in World Perspective by Angela P. Harris. Black atheism: Many mistake nonbeliever Tommie Shelby for a lapsed Christian — here's what they don't understand. Why do so few blacks study the Civil War? Ta-Nehisi Coates wants to know. Madame Noire on things black people think are racist but are not. A review of Looking at African American History, 1513-2008 by Henry Louis Gates Jr. Are there too few African-American men willing and able to be the sort of husbands that black women want?

Rebecca Gould (Iowa): Modernity, Madness, Disenchantment: Don Quixote’s Hunger. Why do Americans hate the French? How a nation of 65 million people got on our bad side. The end of gerrymandering: Have California’s citizen commissions killed corruption in congressional redistricting? In the cold calculus of evolution by natural selection, at no greater time in history than ever before, copiers are probably doing better than innovators — because innovation is extraordinarily hard. An excerpt from The Greatest Grid: Manhattan’s Master Plan, 1811-2011. Without Zuccotti Park, Occupiers struggle for unity. Rich people — feeling poor, just like the rest of us! Some real issues for 2012: The presidential campaign shouldn't eclipse important protest movements already under way. Brett Forrest on the big Russian life of Anna Chapman, ex-spy. How crossword puzzles mess with your mind: The agony and the ecstasy of solving a crossword puzzle can reflect a surprising amount about the subconscious mind. Romney and Santorum actually tied the Iowa caucus, experts say. A review of The Origin of AIDS by Jacques Pepin. An interview with Glenn Greenwald, author of With Liberty and Justice for Some. Why we should be skeptical about the current mania for a third party that appeals to independents and libertarians: Mark Schmitt reviews The Declaration of Independents by Nick Gillespie and Matt Welch. An excerpt from Neurogastronomy: How the Brain Creates Flavor and Why It Matters by Gordon M. Shepherd. As the US enters primary season ahead of the 2012 elections, Abby Ohlheiser assesses the chances of the “God and Guns” Republicans hoping to challenge Obama in November. Welcome to Social Dimension, a blog devoted to the math behind understanding society and civilization.

Samuel Alexander (Melbourne): Peak Oil and the Twilight of Growth. From Conversations with History, an interview with Daniel Yergin, author of The Prize: Energy, Security, and the Remaking of the Modern World. Brad Plumer on how most of the world’s oil comes from aging fields and getting harder to come by. The peak oil brigade is leading us into bad policymaking on energy. A review of Spills and Spin: The Inside Story of BP by Tom Bergin and A Hole at the Bottom of the Sea: The Race to Kill the BP Oil Gusher by Joel Achenbach. An essay on global oil risks in the early 21st century. The massacre everyone ignored: Up to 70 striking oil workers killed in Kazakhstan by Nursultan Nazarbaev, a US-supported dictator. How North Dakota became Saudi Arabia: Harold Hamm, discoverer of the Bakken fields of the northern Great Plains, on America's oil future and why OPEC's days are numbered. The ethical and economic issues aside, what do we know about the safety and environmental impact of oil pipelines today? Friend or enemy: William D. Nordhaus reviews The End of Energy: The Unmaking of America’s Environment, Security, and Independence by Michael J. Graetz. Michael Levi on what the Nobel Prize tells us about oil. Seeking sparks of hope in books on energy: Is there a happy medium between the apocalyptic and the utopian? Don’t count oil out: Alternative energies won’t replace oil, gas, and coal anytime soon. An article on oil and Arabic-speakers in Iran’s troubled southwest. Chris Nelder on why energy journalism is so bad. A look at how the oil map of the world is shifting to the West. Charles Homans on a short history of energy independence: A century and a half of an idea whose time has never come. Oil and democracy: Discovering natural resources has no effect on the political system — if the country is already a democracy.