Emissions reduction

Energy efficiency

These startups are using AI to cut energy waste from buildings

Buildings use — and waste — an enormous amount of energy. A growing number of startups are trying to wield buzzy AI technologies to fix this problem.

By Jeff St. John . 9 October 2023
Utilities

These 25 utilities are united by one big goal: 80% less CO2 by 2030

Dealing with climate change means removing fossil fuels from the power grid ASAP. A diverse and growing group of utilities is leading that effort.

By Julian Spector . 28 September 2023
Clean industry

Startup hits milestone in its bid to cut concrete’s dirtiest ingredient

Demand for clean concrete is rising. CarbonBuilt says it has a potential solution: concrete made without using any Portland cement.

By Maria Gallucci . 21 September 2023
Carbon-free buildings

NYC’s big building-decarbonization law faces its first major test

Landlords and climate activists are sparring over the future of Local Law 97 — the country’s most ambitious citywide mandate to clean up building emissions.

By Jeff St. John . 20 September 2023
Clean industry

Terra CO2 says its Texas factory will cut carbon and cost from cement

The startup is building its first large-scale plant to turn common rocks into cement additives that can reduce cement's hefty carbon footprint without raising costs.

By Jeff St. John . 12 September 2023
Food and farms

Chemical fertilizer is a climate disaster. Can high-tech biology fix it?

Startup Pivot Bio has developed a smarter way to get nitrogen to crops, and it has a new CEO who aims to supercharge growth.

By Michael Grunwald . 29 August 2023
Emissions reduction

Virginia may ditch a regional carbon cap-and-invest program

RGGI has helped boost climate resilience and cut emissions in the state, but its Republican governor wants to leave the program. Activists aren’t sure he can.

By Katie Myers . 29 August 2023
Marine transport

Wind power with a high-tech twist could help ships burn less fuel

Commodities giant Cargill is testing a new kind of wind-harnessing device meant to slash fuel use and curb CO2 emissions from the world's cargo ships.

By Maria Gallucci . 21 August 2023
Video

Video: How the Inflation Reduction Act has transformed US clean energy

Watch a conversation on the historic climate law’s impact featuring the Department of Energy’s David Crane and Canary Media’s Julian Spector.

By Julian Spector . 21 August 2023
Climate crisis

Chart: The US can't meet its climate goals unless states step up

But if the 24 states with aggressive emissions-reduction targets make good on their pledges, the country could get within striking distance of its 2030 commitment.

By Maria Virginia Olano . 18 August 2023