Berkeley Earth launched its "Synthesis" platform, claiming "neighborhood-level" climate data, but its 25km resolution and requirement for login to access specific local projections raise questions about its immediate public utility.

Berkeley Earth officially launched its "Synthesis" platform on June 16, 2026, offering city-level climate projections that detail anticipated temperature spikes and increased cooling demand across the Bay Area through 2100. The platform, backed by grants from the Quadrature Climate Foundation and the Patrick J. McGovern Foundation, is designed to provide localized climate intelligence, which Berkeley Earth describes as "a major undertaking to unlock the value in both historical weather data and climate model projections."

While Berkeley Earth states Synthesis provides "neighborhood-level heat-risk and cooling-demand projections," the technical resolution of the underlying data is approximately 25 kilometers (0.25° x 0.25°). This coarser resolution means that while it offers a significant advancement over broader climate models, the "neighborhood-level" claim in promotional material may overstate its immediate applicability to individual streets or blocks. Executive Director Kristen Sissener emphasized the platform's mission, telling The Daily Californian that "No one lives at the global average," highlighting the need for localized data.

The Synthesis platform is publicly accessible after free registration, but specific, illustrative Bay Area-focused numbers detailing projected temperature increases or cooling demand changes for individual cities or regions are not publicly available without logging in. This lack of immediately verifiable, hyper-local data creates a gap between the announced capabilities and publicly accessible specifics, making it difficult to assess the precise impact on disparate Bay Area communities.