Between Papers
Investigations

Three investigations, published in full

Each started from a set of seed papers and a research question, and leads with the answer. Open any citation to see the passage it rests on.

Batteries

Cheaper batteries for homes and the grid

The answer beginsSodium-ion has moved from lab to factory, but the evidence does not show it making home or grid storage cheaper than lithium iron phosphate (LFP) yet.

Seed papers
25
Sources looked at
396
Read in full beyond the seeds
6
Claims kept
158
Checks run · corrections
314 · 86
Findings · opportunities · combinations
6 · 3 · 3
Open the full investigation
Oil & gas

Cutting methane leaks in oil and gas

The answer beginsOur judgement is that aircraft surveys and AI-screened satellites are closest to reliable, large-scale use.

Seed papers
25
Sources looked at
426
Read in full beyond the seeds
13
Claims kept
209
Checks run · corrections
371 · 94
Findings · opportunities · combinations
6 · 4 · 2
Open the full investigation

Want one on your own question? Start an investigation. The method behind every one: how an investigation is made.