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We need science to solve today's toughest environmental challenges—especially at this critical time for nature. Science is key to safeguarding the air we breathe, the water we drink, the places we love and our children's health. And science is key to addressing the most urgent threat of all: Climate change.

There's only a shrinking window of time left to put our planet on the path to a more hopeful future.

Now is the time to mobilize people who value science and its power to change our world for the better. We need to stand up together for science at this make-or-break moment for our Earth.

So make your voice heard today: Sign the pledge and join our cause.

Together, we’ll call on U.S. leaders to support the scientific research, programs and policy our planet needs because science is not a partisan issue.