Emissions reduction

Long-duration energy storage

Xcel to install Form’s long-duration batteries at retiring coal plants

The utility is testing Form’s 100-hour storage tech to achieve its lofty carbon-reduction goals — and at a scale bigger than nearly any battery plant on earth.

By Julian Spector . 27 January 2023
Carbon-free buildings

VC firm Fifth Wall to bankroll deployment of carbon-free building tech

Despite the building sector's massive emissions, little investment has flowed into real-estate decarbonization so far. Fifth Wall wants to change that.

By Julian Spector . 23 January 2023
Carbon capture

More NYC high-rises to be outfitted with novel carbon-capture system

Startup CarbonQuest had a successful pilot project in a New York City apartment building and now has a contract to roll out its technology at more buildings.

By Julian Spector . 10 January 2023
Climate crisis

US carbon emissions rose in 2022. Can clean energy get them on track?

Historic investments in renewable energy will help the U.S. get closer to halving emissions by 2030, but there's a lot more work to do, a new report warns.

By Jeff St. John . 10 January 2023
Podcast

Why methane matters

The potent greenhouse gas remains in the atmosphere for just over a decade, but cutting methane emissions is a critical step in slowing short- and long-term global warming.

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By Shayle Kann . 43 min . 3 January 2023
Carbon capture

Carbon capture for New York high-rise apartments is a real thing now

As New York City works to reduce building-related carbon emissions, one 30-story apartment tower is proving you can trap and sequester carbon from gas boiler exhaust.

By Julian Spector . 8 December 2022
Air travel

Major airlines are teaming up to tackle planet-warming plane contrails

American, Southwest and United are joining with Airbus, Boeing, RMI and researchers in an effort to mitigate heat-trapping condensation trails.

By Maria Gallucci . 21 November 2022
Podcast

A reality check on corporate sustainability

How large companies are claiming credit for climate progress that isn’t actually happening.

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By Stephen Lacey . 24 min . 16 November 2022
Fossil fuels

Gas plants without the emissions? This startup says it's cracked the code

North Carolina–based NET Power uses a novel combustion cycle that captures its own emissions. Now it's building a 300MW plant in Texas to prove it works at scale.

By Julian Spector . 8 November 2022
Air travel

193 countries pledge to slash air-travel emissions by 2050

It's the first international agreement of its kind for the hard-to-decarbonize aviation industry, but critics say the nonbinding target lacks teeth.

By Maria Gallucci . 10 October 2022