RAISE YOUR HAND IF YOU'RE EMBROILED IN CONTROVERSY

Frances Beinecke and Trip Van Noppen, 06/20/12

World leaders are arriving here in Rio to address some of the most daunting issues facing our planet. To be sure, the myriad problems we now face because we haven't taken more action to address global warming and sustainable development can seem daunting. Here's where to start.

Robert Naiman, 06/20/12

Policy Director, Just Foreign Policy

WikiLeaks has made a tremendous contribution to exposing U.S. foreign policy to public scrutiny. The importance of transparency and public information to reforming U.S. foreign policy cannot be overstated.

Moriel Rothman, 06/20/12

American-Israeli writer and activist

The Israeli State has not only failed at any sort of "loving the stranger," but it has, especially recently, constructed policies that are hateful and oppressive to "strangers" living in our midst.

Amb. Marc Ginsberg, 06/20/12

Former U.S. Ambassador to Morocco

One thing is clear from the incredible events that have taken place in Cairo in recent days: Egypt's popular revolution has been abducted by unelected military officers.

Tim Ward, 06/20/12

Author, publisher, teacher, and traveler

If you are trying to figure out whether or not the iconic "snows of Kilimanjaro" are disappearing due to climate change, don't expect to find an easy answer from the media. When scientists attempt to explain the nuances, the media too often gets it wrong and misreports.

Katherine Fairfax Wright and Malika Zouhali-Worrall, 06/20/12

The decision to make Call Me Kuchu, our documentary film about the last year in the life of Ugandan gay-rights activist David Kato, came about as a result of two rather antithetical events.

Sigourney Weaver, 06/20/12

Academy Award nominated actress

I am thrilled to learn that the U.S. announced that we will join a number of other countries to fund an international partnership that supports ocean acidification monitoring. Ocean acidification is an urgent threat to our planet's ocean life.

James Dorsey, 06/20/12

Senior fellow, S. Rajaratnam School of International Studies

FIFA president Sepp Blatter alongside FIFpro, the global organization of professional soccer players, footballer Eric Cantona and Noam Chomsky have denounced Israel's detention of Palestinian athletes including Mahmoud Sarsak, who has been on hunger strike in Israeli prison for 86 days.

Michael Scarfo, 06/20/12

Freelance Writer

I don't feel safer at all, and both fronts in Iraq and Afghanistan have proven themselves to be quicksand for the world's mightiest military. They were drains of money, manpower and lives.

Jennifer Dabbs Sciubba, 06/20/12

Author, Assistant Professor, Rhodes College

Over the next two decades, there is little doubt, given our history and given global demographic trends, that the U.S. will be called upon or see the need to respond to demographic-induced instability in developing countries.

Michael Brenner, 06/20/12

Senior Fellow, the Center for Transatlantic Relations; Professor of International Affairs, University of Pittsburgh

America's "war on terror" now has brought us deep into tropical Africa. Washington is engaged in an expansive project to hunt down local "terrorists," could-be "terrorists" and mayhem makers in general. Nearly all are no more than loose bands incapable of threatening the United States.

Ahmed Shihab-Eldin, 06/19/12

Producer/Host, @HuffPostLive

Though the military promised a transition to democracy through a three-stage election process, it has now delegitimized its own proposed process, proving the elections were nothing more than a charade.

Joe Powell, 06/20/12

Joe Powell is UK Policy Manager of ONE

Next year Putin and Cameron take the reins of the G20 and G8 respectively. They must show that bringing the most powerful people in the world together can still deliver results for the most powerless.

Hudda Ibrahim, 06/20/12

Director, Women’s Health and Advancement Programs for Community Grassroots Solutions

Women in Segag must be educated in order to prevent tragedies like the one that ripped my family apart and left me to spend my childhood without the physical caring and emotional connection of a loving mother.

Stefani Jones and Sanjay Kishore, 06/20/12

The pressure is mounting on companies to create conflict-free products with minerals from the Democratic Republic of Congo. This week, Duke University joined 10 other colleges calling for responsible monitoring of corporate supply chains that may be funding violence in the Congo.

Mark Kenber, 06/20/12

CEO, The Climate Group

Media coverage has -- to a certain point understandably -- included stories about negotiators quibbling over punctuation, subliminally painting images of Roman emperors, lyres, and blazing urban backdrops. But success comes in many forms.

Yoani Sanchez, 06/19/12

Award-winning Cuban blogger

The man who was characterized by his habit of speaking for hours from the podium in the Plaza of the Revolution and in front of television cameras in the studio, now appears to be opting for minimalism.