Climate

Walmart heir Lukas Walton’s Builders Vision puts S2G on a path to independence

S2G Ventures is graduating today, so to speak. The climate tech investment firm has been living under Builders Vision, an umbrella organization for Walmart heir Lukas Walton’s philanthropic and investment activities, for the past three years. Walton was S2G’s sole limited partner. Now, the organization is bringing others on board. Walton started S2G in 2014

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Productive solar technologies draw investors as global off-grid solar sector funding slumps

Productive Use of Renewable Energy (PURE) technologies, especially those in the solar irrigation and cold chain segment, saw increased investor interest last year, despite a 43% funding slump recorded in the global off-grid solar sector. The global association for the off-grid solar energy industry, GOGLA, says PURE technologies raised $65 million in 2023, double the

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The ‘valley of death’ for climate lies between early-stage funding and scaling up

Jonathan Strimling faced a dilemma. His company had spent nine years working on chemical processes that could turn old cardboard boxes into high-quality building insulation. The good news was the team had finally cracked it: CleanFiber’s technology pumped out insulation — really good insulation. It had fewer contaminants and produced less dust than other cellulose

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Bringing down skyscrapers’ sky-high carbon footprint with Joselyn Lai from Bedrock

Keeping homes and offices at just the right temperature requires a lot of energy. Buildings generate about a third of the carbon pollution in the U.S., most of which comes from heating and cooling. Bedrock Energy, co-founded by Joselyn Lai, thinks it has found at least a partial solution. The startup seeks to decarbonize climate

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Texture makes a bid to become the world’s go-to platform of the energy transition

Platform is a word that gets tossed around a lot in technology circles, so much so that it’s often misused. But here’s the basic business school definition: A platform is a company or business model that creates more value for participants than it captures for itself. Consider that some of the most successful companies in

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Exclusive: General Galactic emerges from stealth to make methane from carbon dioxide

Plenty of products benefit from tight integration, where companies design and sometimes build key components of a product in-house: Apple and its custom microprocessors and Tesla and its Superchargers are two notable examples. It’s not an easy strategy to get right, but General Galactic, a stealthy new startup, hopes the approach will let it drive

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Green search engine Ecosia launches a cross-platform browser

Ecosia, the search engine that funds tree-planting initiatives with a portion of its search ad profits, has launched a new cross-platform browser to grow its online footprint. The new browser, available for Mac, Windows, iOS and Android, is built on top of Google’s open source browser project Chromium, which explains why there aren’t many differences

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Building owners are often in the dark about their carbon pollution — a new algorithm could shed light on it

Starting this year, thousands of buildings in New York City will have to start reducing their carbon emissions. But before that happens, owners need to understand how much pollution they are generating. Electricity alone makes up 60% of the total energy use in commercial buildings, according to the U.S. Energy Information Administration. There are plenty

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Magnus Metal wants to revamp the 4,000-year-old way metal parts are made

Humans have cast metal parts in basically the same way for thousands of years: by pouring molten metal into a mold, often made of compacted sand and clay. There’s a reason this ancient method is used today: Sand casting is inexpensive and works well with both ferrous, or iron-based, and nonferrous metals. But there is

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