Some interesting misfires from the last year

How cheaply can it pull CO2 from the air?

They are incentivized to waste electricity anywhere it results in less capex

There are reasons to doubt that electrochemical or biological processes can substitute for thermochemistry so easily.

Exponential wind loading near the atmosphere’s length scale for turbulence might prevent airships from getting much longer than about 400m.

If it takes more than a calorie of fossil hydrocarbons to produce a calorie of food, should we just eat the oil directly?

Microwave phased arrays seem to be a more realistic option than batteries or H2 for powering long-haul electric aviation. We still doubt anybody will build them.

We'll make more decarbonization progress by inventing the materials of the future than by reinventing the materials of the past.

~1% of global warming addressable at around $1/ton CO2 equivalent.

We tried to use a cheap laser to grow carbon fiber directly from methane gas. It worked quickly and repeatably, but the carbon fiber wasn’t as strong as it’d need to be to make a good commercial product.

Revisiting intriguing Soviet-era results showing efficient N2 oxidation in non-equilibrium plasmas. An intriguing approach to low-cost nitrate fertilizers without Haber-Bosch.

Powerful infrared lasers are getting extremely cheap. What should we use them for?