Waste Reduction

ChatGPT generated this high-resolution image of stacked steel beams and rebar at a construction site, illustrating steel’s foundational role in traditional building

Reassessing Steel: How Falling Cement Use Alters Future Projections

My recent online conversation with Scott Norris, a structural steel expert and Director of Engineering Solutions at Steelcon, prompted me to reexamine some assumptions I had previously made about global steel demand projections. Scott, whose practical experience within the steel industry grants him clear insights into current operational constraints and … [continued]

ChatGPT generated a thermal infrared drone image showing methane leaking from an abandoned well as a vivid red-orange plume against a dark purple terrain

Hidden Super-Emitters: The Climate Imperative Of Addressing Abandoned Fossil Fuel Infrastructure

Methane, long overshadowed by carbon dioxide in global climate discussions, is finally receiving the attention it deserves. Recent research, including a just published critical global inventory, A global inventory of methane emissions from abandoned oiland gas wells and possible mitigation pathways by Lei et al., highlights methane emissions from the … [continued]

"Los Angeles" by ST33VO is licensed under CC BY 2.0.

Who Thinks Urban Sprawl Is A Good Thing?

The Dallas area has grown by about three million people over the past two decades, and Ross Perot, Jr. predicted in the New York Times that greater Dallas would continue to push outward for many decades more. It will start at a point 40 miles from downtown, he says, then … [continued]

ChatGPT generated overhead image showing massive coal ash ponds, vividly contrasting the minimal scale of solar panel waste

Solar Panel Waste is Tiny—Coal & Gas Emit Hundreds Of Times Mass Per MWh

Every few months, another wave of media reports predictably warns about the supposed “looming crisis” of solar panel waste. Given the urgency of climate action, it’s frustrating to see the conversation repeatedly derailed by these exaggerated concerns. I’ve previously examined this narrative around wind energy, demonstrating clearly in my CleanTechnica … [continued]

ChatGPT generated panoramic image of cross-section showing: LCO₂ ship → Øygarden tanks → high-pressure pumps → subsea pipeline → Johansen reservoir

Beneath the Fjord: Inside Northern Lights’ Carbon Storage Core

The Northern Lights carbon capture and storage project is often described as a logistics system, but at its core, it is a storage facility. The Øygarden terminal, its connecting offshore pipeline, and the Johansen Formation are the infrastructure that turns cross-border CO₂ shipments into permanent geological sequestration. Phase 1 is … [continued]

ChatGPT & DALL-E generated panoramic image of an electric cement truck covered in circuitry delivering cement to a construction site.

Cement Decarbonization Policy Makers Need To Understand All Levers

The global cement industry, long recognized as a backbone of infrastructure development, faces mounting pressure to reduce its environmental impact. Responsible for approximately 7–8% of global carbon emissions, cement production is one of the most carbon-intensive industrial processes. Yet, as climate policies tighten and innovation accelerates, the industry stands at … [continued]

"children eating" by Franklin Park Library is licensed under CC BY 2.0.

How US Federal Spending Reductions Threaten Our Food, Water, And Health

Recent freezes and massive cuts in government spending threaten our food, water, and health as they open up trillions of dollars in tax breaks for corporations and billionaires. Basic government functions are in jeopardy. Let’s look at a list of important areas that are now likely to lose federal government … [continued]