As the United States celebrates its 250th anniversary, let’s take a moment away from the chaotic headlines we wake up to every morning to reflect on where we’ve been and where we’re headed.

After America declared independence, its government struggled until the Founders wrote the Constitution 11 years later “to form a more perfect Union.” It may be one of the greatest strengths of the American experiment.

Our Founders couldn’t define perfection for future generations. But they created a framework that lets us keep pursuing it. Each generation inherits a country shaped by those who came before. Each generation decides what comes next.

We have seen that responsibility exercised before, powerfully and collectively. In 1970, Earth Day galvanized the largest civic mobilization this country had ever seen. Millions of Americans delivered a clear message: democracy depends on protecting what we all share.

You cannot have life, liberty and the pursuit of happiness without clean air to breathe and clean water to drink. That movement built institutions. It gave rise to the EPA, the Clean Air Act, the Clean Water Act — formal commitments that in a democracy, the public has a voice, and profit cannot be the only consideration.

That was a generation defining what the more perfect Union meant for their time.

For New Yorkers, that work is more urgent than ever. Yet climate action is being deterred by Washington, while Americans are already living with the consequences. Record flooding damages homes and businesses. Extreme heat causes serious health risks and strains our energy grid. Our aging infrastructure was not built for what we now face. Worse, some communities bear the unjust brunt of pollution and climate risk.

The question that Earth Day asked still stands: what kind of democracy fails to protect the air its people breathe and the water they drink? Democracy has to mean something in daily life — in the safety of our neighborhoods, the health of our children, the resilience of our communities.

During this 250th year, we need democracy to be more than an ideal. A more perfect Union starts with clean air, clean water, and healthy places to call home.

The opportunity to shape what comes next is one of the greatest privileges of living in a democracy. At the New York League of Conservation Voters, we see that responsibility reflected at the ballot box. The environment we leave to future generations is shaped by the choices we make as voters and the leaders we elect. Decisions about clean energy, land conservation, sustainable infrastructure, and climate resilience don’t happen in a vacuum. They are made by people we choose to represent us.

The progress our state has made happened because New Yorkers showed up. They made their voices heard and elected leaders willing to act — just as earlier generations have done before.

The people we elect to local government, to Albany, and to Washington determine whether we keep building a cleaner, healthier, more resilient future — or leave the next generation a harder road than the one we inherited.

As we approach this anniversary, I find myself thinking less about what has endured for 250 years and more about what deserves to endure for the next 250.

We did not inherit a perfect Union. Our predecessors built it — and when the moment demanded it, they acted together. In the streets. At the polls. In the institutions they created to protect us all.

Our environment and our democracy are inseparable. Now it’s up to us to defend those pillars that are vital to our country and keep striving to form that more perfect Union.

Tighe is president of the New York League of Conservation Voters.