Tuesday marks the 55th anniversary of Earth Day and Climate Action Now’s 4th birthday. And while there isn’t much cause for celebration in the U.S. right now, we have one really big reason to be hopeful:

Three months into Donald Trump’s second presidency, the resistance is growing.

• First, we have the people. Millions of Americans representing all 50 states joined Hands Off! protests across the country on April 5th, and yesterday was another national day of action. Then, there are smaller—but no less important—instances of collective resistance, like the nearly 2,000 scientists who signed on to a letter criticizing the administration’s war on America’s scientific institutions.

• Next, our representatives. It’s only been a few weeks since Senator Booker’s inspiring 25-hour stand on the Senate floor. And we can’t forget Representative Ocasio-Cortez and Senator Sanders, who have consistently drawn huge crowds in deep-red districts with their “Fighting the Oligarchy” tour.

• Then, we have the courts. Federal judges are consistently ruling against unlawful layoffs and the illegal withholding of appropriated funds. Prominent law firms have chosen to sue, rather than stand down, when targeted by executive orders. And state attorneys general—not to mention organizations like Earthjustice, the Natural Resources Defense Council (NRDC), and the American Civil Liberties Union—are relentless in their advocacy for our people and planet.

Of course, it doesn’t end there, and we would be remiss not to mention one of the most inspiring acts of resistance in recent weeks: Harvard University’s courageous stand for academic freedom.

Under the guise of combating antisemitism on campus, the Trump Administration gave Harvard a list of demands. Some focused on controlling who it can hire, who it can admit, and what it can teach. To comply would’ve meant a major overhaul of university operations and rejecting everything Harvard stands for as an institution of learning and advancement.

So, even with $2.2 billion on the line, the President of Harvard announced, “The university will not surrender…”

Harvard’s decision isn’t just a win for democracy with the power to inspire others—it’s a win for learning over ignorance, for independence over control, and courage over cowardice.

As far as we’re concerned, it’s even a win for the climate. Harvard has historically played a leading role in climate scholarship, and had they complied, it’s inevitable that this research would have fallen under scrutiny and been defunded, or at the very least, severely restricted.

So this is a big moment. And you want to know the best part?

There are many more examples of people choosing to fight than those listed here.

And while wins like these don’t negate the severity or difficulty of this moment, they’re a step in the right direction—and a reminder that there are countless institutions, organizations, and individuals willing to stand against authoritarianism and advocate for the rights, freedoms, and protections we deserve.

Let’s let them know that there’s a group of climate advocates across the country joining them and cheering them on!