Sustainable Tech

Exploring sustainable technologies and advancements in materials, plastic, recycling, water purification, building and construction, and more.

The Truth About Heat Pumps and Cold Weather

Heat pumps are versatile, efficient, and great for both heating and cooling … or are they? Whenever heat pumps are mentioned, critics bring up their ineffectiveness in the cold, so is that still true? Or do more modern heat pumps continue to work effectively in cold climates? I’m currently building

The Future of Green Concrete

by Joseph DeNatale

Concrete, the literal foundation of our built environment, is the most commonly used man-made material in the world. But its key ingredient – cement – has a carbon footprint that rivals the world’s biggest emitters. Under pressure to reduce emissions, the global construction industry is reckoning with an array of innovative,

Cleaner Air Is Coming to the Whole City of London in 2023

by Greg Makrigiorgos

London can finally take a breath. Coming up in 2023, the Ultra Low Emission Zone (ULEZ) is expanding to cover the entire city. This is the second expansion of London’s flagship air quality policy, with the new zone more than doubling its reach to impact over 9 million people.

How to Cut Your Impact (and Your Bills) as a Homeowner

by Greg Makrigiorgos

Renewable energy and reduced carbon impact often come with a stigma of being expensive. And this reputation was well-deserved for a time. But with the Inflation Reduction Act, as well as technology developments over the last couple years, there are a handful of ways you can actually save money by

How Big Can You Make a Passive House?

Recently I’ve talked about my new net zero home I’m building, but not all net zero buildings have to be homes or houses. The same net zero, passive house concepts can be scaled up to large buildings, offices, and apartment buildings. In fact, I had a chance to

Why Bitcoin May Never Go Green

by Greg Makrigiorgos

Dogecoin. Bitcoin. Etherium. Cardano. Even if you don’t know how cryptocurrencies work (and no pressure, it’s complicated), you’ve probably heard these names.  Though the value of crypto is down right now, it’s not going away anytime soon. Crypto production is constant, and there’s a magnifying

How Hydrogen Could be the Future of Green Steel

by Joseph DeNatale

While less visible than motor vehicles and power plants, steel manufacturing is a similarly significant source of global carbon emissions. That’s why the global steel industry is now under pressure to turn to “green steel” production to help combat the climate crisis. Steel is the world’s most commonly