Again in the early 1990s, cooperation between Democrats and Republicans produced significant environmental progress, including the Clean Air Act Amendments of 1990, which addressed acid rain, smog and toxics and the Pollution Prevention Act of 1990 which stopped pollutants at their source. Were they costly? Initially to the polluters yes, but the health and safety results, estimated to be close to 2 trillion dollars in health cost savings, have been stunning. And eventually industry investment in clean technologies led to efficiency, profits and innovation. These laws and others demonstrated that bipartisan cooperation could deliver both environmental and economic results.

What is often forgotten today is how broad that political coalition once was. Environmental protection was not a partisan cause. Republicans and Democrats almost competed to be seen as environmental champions. Conservative lawmakers voted for pollution limits and no wonder. Seventy five percent of Americans supported increased government spending to reduce air and water pollution, and large majorities said they were willing to pay higher costs for clean air and water.

For a time, that public pressure worked.

But the momentum that first Earth Day created has slowed and increasingly reversed. Why? One major turning point came in 2010, when the Supreme Court’s Citizens United decision allowed corporations and outside groups to spend unlimited money in elections. In the years since, political spending by all groups has surged but particularly by polluting industries, which outspent health and environmental groups 20 to 1. According to Climate Power, the fossil fuel industry spent $450 million during the 2024 election cycle.

In the past year, 425 environmental and health and safety laws and regulations have been rolled back or crippled, many of which, including all climate change related policies and laws, were promised during the election. The quid pro quo for donations was pretty straightforward–denial that climate change exists or is harmful.

Citizens United opened the spigot for anti-environmental spending and what is coming out of those spigots is hurting our children, our health, and American innovation and economic leadership.

The influence of that spending has helped transform environmental policy from a bipartisan priority into one of the most polarized issues in Washington. In the years before the ruling, bipartisan climate legislation was still possible. In the years after Citizens United, cooperation largely collapsed. The result has been legislative gridlock at precisely the moment scientists and many economists say immediate action will both reduce or even solve the climate crisis and keep America from losing its place in the impossible to stop green economy.

Ironically, this reversal of environmental policy has occurred even as public concern has remained high. Surveys consistently show that large majorities of Americans believe climate change is real and more than 70 percent of Americans support stronger measures to address climate change. This disconnect between public concern and political action is the defining challenge of this Earth Day and the environmental movement itself.

That is why the theme of this year’s Earth Day, Our Power, Our Planet, is more than a slogan. It is a reminder of a fundamental truth that shaped the first Earth Day: political power ultimately flows from citizens–real people–to Congress and the White House.

The environmental breakthroughs of the 1970s and 1990s did not happen because leaders suddenly discovered science. They happened because millions of people made environmental protection politically unavoidable. Citizens marched, organized, voted, and demanded action. They made it clear that protecting the planet was not optional. Today, that same civic power and engagement is needed again.

If governments believe environmental protection is a low priority for voters, progress will stall. If they believe the public is divided or disengaged, short-term political pressure and massive corporate dollars will always win. But when citizens demonstrate that protecting the planet matters–to their communities, their votes, and their future–leaders respond.

That is the real meaning of Our Power, Our Planet. The environmental movement has already shown what collective action can achieve. The question now is whether we are prepared to use that power again. Because the progress of the past half-century was never guaranteed, without sustained public engagement it could easily erode.

Earth Day was never meant to be a celebration. It was designed as a demonstration of public will. Fifty-seven years later, the challenge is the same: to show governments, once again, that the power to protect our planet ultimately belongs to the people.

Kathleen Rogers is President of EARTHDAY.ORG, the world’s largest recruiter to the environmental movement, working with more than 150,000 partners in nearly 192 countries.