The Inflation Reduction Act (IRA), President Biden’s climate investment law, took more than a year of negotiation and debate before enactment. Some of the biggest climate moves of the next administration are likely to come in the first months of 2025, regardless of the outcome of the election. At the heart of the matter are two events already set on the calendar: the reinstatement of the federal debt limit in January and the expiration of many of the Trump-era tax cuts later in the year.