New Brunswick’s biggest industrial carbon emitters pumped out lower amounts of greenhouse gases in 2023, but the reductions were not enough to keep pace with tightening emissions standards. The gap between the total emissions by the province’s 15 biggest industrial polluters and their regulated emissions limits grew larger, according to numbers from the provincial government. That left them paying more under the province’s credit-trading carbon pricing system. Even so, that system is gaining traction, with more of those credits changing hands. …New Brunswick’s industrial carbon price is based on a credit trading system, a financial incentive for the 15 largest industrial emitters to stay below their emissions standards. If they do, they earn what are called performance credits they can sell for a profit. Plants that go above their standards must buy credits, adding to their cost. …The 15 big emitters collectively bought $21.1 million worth of fund credits in 2023, up from $12.6 million in 2022.