The Brazilian government wants to build a massive mega-dam in the heart of the Amazon -- and European energy giants EDF and Engie are lining up to help.

If they succeed, it will mean devastation for the majestic Tapajós River, one of the last free-flowing rivers in the Amazon -- and for the people and wildlife who depend on it.

EDF and Engie are preparing their bids right now -- but we can stop them. One European company, Enel, has already pulled out of the bidding for environmental reasons. If enough of us speak out, we can get EDF and Engie to do the same.

Sign the petition telling EDF and Engie to pull out of bidding for the São Luiz do Tapajós dam project!

If the dam goes ahead, the 7.6 kilometre long and 53 metre high concrete wall will cut across the Tapajós river, interfering with the flow of its nutrient rich waters to floodplains that are critical for the survival of otters, turtles and caimans. It will flood the sacred sites and ancestral lands of 12,000 indigenous people, and it will leave a legacy of mass deforestation and illegal logging in its wake.

The energy companies preparing their bids may not care about any of that -- but they do care about their global reputations. If we can show them that building the dam would destroy their brands, we can stop the construction of the dam once and for all.

We’ve done it before. Hundreds of thousands of us recently stood up to stop the construction of the Agua Zarca dam in Honduras, after indigenous rights activist Berta Caceres was tragically assassinated -- and we got the largest remaining investor in the dam, FMO, to suspend all disbursements into all projects in Honduras, including Agua Zarca. Brazil's environment agency has just announced it's suspending the license to build the dam, but it's not over yet. Let's make sure they cancel it for good.

Let EDF and Engie know that their reputations are at stake if they go ahead and bid for the dam.