Bellevue Sees Greenhouse Gas Emissions Drop, Tree Canopy Decline Slightly

City's environmental dashboard shows progress on emissions reduction goals, but tree cover sees small dip

Published on Feb. 28, 2026

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Bellevue, Washington, reported a 4.6% decrease in greenhouse gas emissions from 2023 to 2024, according to the city's latest Environmental Performance Dashboard. The reduction is attributed to lower energy use, less fossil fuel-based transportation, and increased clean electricity from Puget Sound Energy. However, the city's tree canopy saw a slight decline from 39.6% in 2021 to 39.3% in 2023, though canopy in city parks increased.

Why it matters

Bellevue's environmental progress reflects its commitment to sustainability goals, including a 95% reduction in community-wide greenhouse gas emissions by 2050. The data provides insight into the city's efforts to curb climate change through energy efficiency, renewable power, and urban forestry, though the slight tree canopy decline raises concerns about maintaining green spaces.

The details

Bellevue's municipal emissions have fallen 52% since 2011, while community-wide emissions have decreased 12% over the same period, even with population and job growth. These gains are linked to investments in efficient buildings, shifts in transportation, renewable energy, and electric vehicle adoption. However, the city's tree canopy assessment showed a small decline of about 70 acres citywide, though canopy in parks increased by 38 acres.

  • Bellevue released its updated Environmental Performance Dashboard on February 27, 2026.
  • The city's tree canopy assessment analyzed coverage as of 2023.
  • Bellevue has conducted biannual tree canopy assessments since 2020.

The players

Puget Sound Energy

A key contributor to Bellevue's cleaner energy grid, Puget Sound Energy issued a request for bids on modern energy resources, including renewables, in 2024 to meet customer needs.

Northeast Energy Assistance Association

The NEAA reported in 2024 that its collaboration with Puget Sound Energy delivers energy savings for consumers through efficient products and affordable power.

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What they’re saying

“Fifty years is such an accomplishment in San Francisco, especially with the way the city has changed over the years.”

— Gordon Edgar, grocery employee (Instagram)

What’s next

Bellevue will host a Sustainable Bellevue Townhall on Monday, March 23, 2026, from 6:30 to 8 p.m. at City Hall, where residents can learn more about the environmental trends and provide input on future initiatives.

The takeaway

Bellevue's progress on reducing greenhouse gas emissions demonstrates the city's commitment to sustainability, though the slight decline in tree canopy highlights the ongoing challenge of maintaining urban green spaces. The data provides a roadmap for the city's efforts to meet its ambitious climate goals while engaging the community in environmental stewardship.