Senate committee advances ‘Clear Horizons’ climate bill after amendment; 5-4 vote

Senate Bill 4, the Clear Horizons Act, which would codify statewide greenhouse‑gas reduction targets and require the New Mexico Environment Department and boards to develop rules and monitoring, advanced out of the Senate Conservation Committee on a 5‑4 vote after a technical amendment was adopted.

The bill, sponsored in committee by Senator Stewart, sets economy‑wide targets of 45% fewer greenhouse‑gas emissions by 2030, 75% by 2040 and net‑zero (100%) by 2050 compared with 2005 levels. "The governor has talked for 6 years about codifying her initial climate executive order," Senator Stewart said in introducing the bill, adding the measure aims to put those goals into statute and require inventories and monitoring.

Why it matters: supporters said the statute would give the state a clear, enforceable path to meet international and regional climate commitments and direct agencies to account for equity in rulemaking; opponents said the goals are unrealistic on the timetable and would raise costs for consumers and businesses without enough guardrails.

The bill requires the New Mexico Environment Department (NMED) to work with the Environmental Improvement Board (EIB) and, where applicable, the Albuquerque‑Bernalillo County Air Quality Control Board, to develop plans and regulations. Expert witness Gabe Esiniak, a UNM law professor who advised the sponsor, told the committee the bill mirrors structures used in other states and "calls for NMED to develop a plan to propose how to regulate the different sources of greenhouse gas emissions to meet these statewide goals." Esiniak said that NMED’s recent inventory shows the state is on track to meet the 2025 target but would reach only about a 32% reduction by 2030 without additional measures.

The committee adopted a set of technical amendments proposed by the sponsor’s office. The changes clarified monitoring language, added an explicit reference to measuring methane emissions from oil and gas exploration and production, and adjusted internal references to how EIB and the local board will review monitoring and reporting requirements. The amendment was moved by Senator Cedillo Lopez and was adopted without recorded opposition in the discussion.

Supporters who testified included county officials, environmental groups, business leaders in clean manufacturing and university climate scientists. Santa Fe County Commissioner Lisa Kokari Stone told the committee the bill would protect public health and stressed the bill’s climate‑equity provisions, saying the measure requires agencies to apply an equity framework when developing rules. ‘‘This bill is important to take significant steps for future generations,’’ she said.

Opponents included trade associations and representatives of the oil, gas and agriculture sectors. Terry Cole, president and CEO of the Greater Albuquerque Chamber of Commerce, testified in opposition, saying "the scale and scope of the bill would affect all buildings and structures" and warning of unintended consequences for jobs and the economy. Tom Patterson, president‑elect of the New Mexico Cattle Growers Association, asked for more detail on measurement, testing locations and the economic analysis behind the 2005 baseline and the reduction targets, saying, "Unless and until they are competently answered, aspirations and hope are not sufficient." Ashley Wagner, vice president of government affairs for the New Mexico Oil and Gas Association, said the goals were "overly burdensome" and "not achievable" on the proposed timeline.

Key details and implementation steps discussed in committee: - Baseline and targets: witnesses cited a 2005 baseline of roughly 96.4 million metric tons of CO2 equivalent; the bill’s 2030 target was described in testimony as roughly 53 million metric tons annually (about a 45% cut from 2005). Those figures were presented by the sponsor’s technical expert during questioning. - Inventory and reporting: the bill requires NMED to produce a sectoral greenhouse‑gas inventory and an initial report; supporters said the first inventory/report is not due until July 1, 2026, giving agencies time to develop monitoring protocols. - Rulemaking structure: NMED would develop a plan; EIB (and, for local air quality issues, the Albuquerque‑Bernalillo County Air Quality Control Board) would conduct formal rulemaking to implement regulations. Supporters repeatedly noted the bill leaves specific sector allocations and regulatory tools to that later process. - Funding and staff: committee discussion referenced a fiscal analysis that assumes an appropriation of roughly $3 million and about 10 full‑time equivalents (FTEs) at NMED for initial implementation and contracting; the transcript records questions from members about those assumptions and potential costs to consumers. - Equity and community focus: the bill incorporates climate‑equity principles and references EPA mapping tools for "overburdened communities," language supporters said is intended to prioritize communities disproportionately affected by pollution and climate impacts.

Votes at a glance: - Amendment (technical monitoring and drafting edits): moved by Senator Cedillo Lopez; adopted (no separate roll‑call opposition recorded in the committee exchange). - Final committee motion — "do pass, as amended": moved by Senator Pope; roll call recorded the committee recommendation as "do pass, as amended" with a 5‑4 tally. Recorded roll call in the transcript: Yes — Senator Charlie, Senator Hamlin, Senator Pope, Senator Seville Lopez, Senator Saponics; No — Senator Cervantes, Senator Zell, Senator Scott, Senator Townsend. (Roll‑call numbers and names are recorded in the committee transcript.)

What happens next: with the committee’s "do pass" recommendation, Senate Bill 4 moves to the Senate floor for further consideration and potential amendment. Committee members and witnesses signaled the bulk of implementation detail will be developed through rulemaking at NMED and EIB, with a requirement that EIB consider cost and technology feasibility in its rulemaking.

The committee hearing included dozens of proponents and opponents who raised technical questions about baseline measurements, the feasibility of economy‑wide targets, potential costs to low‑income residents and the agricultural sector, and the timetable for reporting and enforcement. The sponsor and agency witnesses said they would continue stakeholder outreach and work through technical refinements during the rulemaking process.