Hawaii Legislature Passes Landmark Climate Adaptation Fund With $150M Annual Commitment

The Hawaii State Legislature passed a landmark climate adaptation bill on its final day of session, establishing a permanent $150 million annual fund to protect communities from sea level rise, extreme flooding, and coastal erosion.

House Bill 1247, which passed both chambers with bipartisan supermajorities, creates the Hawaii Climate Adaptation Authority and funds it through a combination of visitor accommodation tax revenue and a new surcharge on coastal property insurance premiums. Governor Green has indicated he will sign the bill.

“Hawaii is ground zero for climate change in America,” said lead sponsor Representative Nicole Lowen. “This fund ensures we’re not just studying the problem — we’re actually moving homes, rebuilding seawalls, and restoring wetlands.”

The fund will support four primary categories of spending: managed retreat from the most vulnerable coastal areas, infrastructure hardening for roads and utilities, natural buffer restoration including wetlands and dune systems, and community resilience planning for neighborhoods identified as high-risk.

The bill includes a provision requiring that at least 40 percent of funds be directed to historically underserved communities, recognizing that lower-income neighborhoods on flood-prone land face disproportionate climate risks. Priority areas include Mapunapuna, Ewa Beach lowlands, and parts of Waikiki that face chronic tidal flooding.

Environmental groups that lobbied for the bill called it the most significant climate legislation in Hawaii since the state’s landmark 100 percent renewable energy mandate in 2015. The Sierra Club’s Hawaii chapter called it “a model for every coastal state in America.”

The Climate Adaptation Authority will be governed by a seven-member board appointed by the governor and confirmed by the senate, with seats designated for Native Hawaiian land management experts, climate scientists, and community representatives.