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As the current administration continues dismantling climate safeguards, activists are preparing for nationwide events on Sunday to champion solar energy and energy efficiency.

An All-Out Initiative

Called Sun Day, the event is being led by veteran climate campaigner Bill McKibben. In a recent statement, he stated, “We are not only playing defense but pushing forward clean energy alternatives.”

Since taking office, the White House has reportedly taken over 150 measures against climate as well as renewable initiatives. McKibben suggested that the fossil fuel sector, which backed the presidential campaign, is driving these actions due to increasing concerns over market share from renewables.

“Clean energy is growing more rapidly than every other energy source in history,” McKibben noted. “We need to speed up this momentum to keep pace with the urgent demands of climate change.”

A Fresh Kind of Demonstration

This event is expected to be one of the biggest climate-focused gatherings in recent decade. However it stands apart from earlier marches that focused on defending policies or research-based credibility.

Rather, the day’s over 200 events across the nation will highlight real-world instances of sustainable power in use. For example in Virginia, PV systems will be installed on affordable homes, while a local education system deploys electric school buses. Meanwhile, over in New Hampshire, a live show will be powered by zero-emission vehicles.

Prominent Support

McKibben will appear in New York City alongside notable figures such as actress-activist Jane Fonda, municipal financial officer Brad Lander, and musician Antonique Smith, who will perform the Beatles’ “Here Comes the Sun.”

“This is no longer alternative power,” he stated. “It’s the obvious path ahead. That is what poses the biggest challenge to the traditional energy sector.”

Nationwide Activities

From Oregon to Minnesota, the capital to New York, communities are planning diverse gatherings featuring Native performers, theatrical performances, solar-home tours, and even the launch of a carbon-neutral emergency services building.

Additional major cities holding activities are Berkeley, Chicago, Asheville, Boston, and Tucson.

Background and Pushback

The demonstrations come amid reports that US carbon output rose in the first half of 2025. Recent weeks, the government has acted to undo climate regulations, eliminate renewable power tax credits, and halt wind farm developments—including those mostly completion.

Regardless of these efforts, clean power continues to grow. In March, as the initial time ever, the US produced under 50% of its power from coal, oil, and gas.

Still, this optimistic tone of the event has received some criticism. Critics argue that positive rallies may seem insensitive given the ongoing political climate.

Jamie Henn, a co-organizer of the event, acknowledged the concerns but stressed that effective social movements must both call out issues and promote answers.

“It's essential to offer supporters optimism,” Henn stated, making comparisons to historical causes like civil rights and LGBTQ advocacy.

Expanding the Coalition

Henn thinks that highlighting solutions could attract new allies, including those uncomfortable with conventional marches or those unmoved by anti-corporate rhetoric.

The organizer noted that renewable power could also resonate with right-leaning audiences who prize energy independence and market-driven options.

McKibben pointed to examples like Utah approving small-scale solar and Texas becoming as a leading renewable power state.

The co-organizer concluded on an hopeful tone: “This has been a difficult period, but seeing local efforts build solutions inspires hope.”