Carol Pierson Holding, 07/18/12

Writer, CSRHub

Maybe this summer of devastation -- drought along the Mississippi, severe heat across the Midwest and fires in Colorado -- can awaken citizens to the inequities of climate change.

Neil Wagner, 07/18/12

Creator, 'What on Earth?' Comic Strip

Unusual is defined as "not usual, common, or ordinary; uncommon in amount or degree." I'd say our climate's behavior is unusual, as is George Will's perception of it.

Paula Daniels, 07/18/12

Founding Chair, Los Angeles Food Policy Council

On the day the Higgs-like boson was discovered, I came home to a discovery on my doorstep. Cradled there, within a folded bag, was a home-grown spectacular of freshly plucked fruits and vegetables.

Sandra Steingraber, 07/18/12

Authority on environmental links to health

Fracking is a technology surrounded by metaphors that blind us to the data. Natural gas is called a bridge. And, claim its proponents, it will carry us to many good places.

Serj Tankian, 07/18/12

Singer, poet, songwriter, activist, and composer

Climate change has turned into the arch-enemy of civilization and rightfully so, since civilization has excluded concern for the environment until recently.

Glen Martin, 07/18/12

Author, 'Game Changer: Animal Rights and the Fate of Africa's Wildlife'

My wife's family farm in the Phillipines isn't agribusiness. But it isn't organic farming either. It follows a middle way that contains elements of both models, but closely resembles neither.

Bill Bigelow, 07/18/12

Co-director, Zinn Education Project; Curriculum editor, Rethinking Schools

For those of us who take climate science seriously, I think that we're left with an inescapable conclusion: it's not enough to teach about fossil fuels, we have to teach against fossil fuels.

Dr. Patricia Wright, 07/18/12

Professor of Anthropology, Stony Brook University

Since a political coup in 2009, laws are not being enforced and illegal logging, fires to turn forests into charcoal and hunting of lemurs is rampant throughout much of Madagascar.

Sandra Larriva, 07/18/12

Multimedia journalist

Jacques Cousteau, who visited Cocos numerous times, proclaimed it "the most beautiful island in the world." Visit it if you dare, knowing that you will never see the ocean the same way again.

Russell Mittermeier, 07/17/12

President, Conservation International

In addition to political problems continuing to grow during the past three years, a recent upsurge in bushmeat hunting has impacted lemurs, tortoises and other species.

J. Mijin Cha, 07/18/12

Senior Policy Analyst, Dēmos

if you think of nature as an independent entity having a worth beyond what it can provide to humans, how do you put a price on it? How much is the Amazon River or the Himalayan mountain range worth?

Vickery Eckhoff, 07/18/12

Forbes.com writer of 12-part series on horse slaughter and the horse industry.

A Missouri horse slaughterhouse will open by summer's end, its major proponent has declared in dozens of news reports over the last month. Except it won't.

Jennifer Tyler Lee, 07/17/12

Creator, Crunch a Color

Researchers have long argued that a little dirt in our diets can improve our health -- strengthening our immune system and reducing allergies. The mighty microorganisms found in backyards across America may be the least expensive and most universally accessible way to keep our bodies healthy.

Chris Barnes, 07/17/12

What do you with your prescription pill bottles when you finish taking its contents? Turn them into containers, emergency kits and more. Here are my favorite uses for this everyday item.

Annie Leonard, 07/17/12

Director, the Story of Stuff Project

We need a big idea of how things could be better -- a morally compelling, ecologically sustainable and socially just idea that will not just make things a little better for a few, but a lot better for everyone. And we need to get active.

Frances Beinecke, 07/17/12

President, Natural Resources Defense Council

Too many lawmakers have remained idle while Americans pay for unchecked climate change with the health of our families and the well being of our communities. It's time for leaders of both parties to start calling for reductions in carbon pollution and clean energy solutions.

Will Travers, 07/17/12

CEO, Born Free

More than a decade ago we expressed concern about the zoo's acquisition of two dolphins from South Africa. We asked the zoo to instead consider phasing out the captive dolphin display. We are thrilled to see that the zoo may finally be heeding our advice.