Marine BiologyMeta-analysis
We extracted 23 calcification and growth effect sizes from 16 published ocean acidification experiments, pooled them with a DerSimonian-Laird random-effects model, and asked whether taxonomic group explains why those experiments disagree with each other as violently as they do. The pooled response is a 13.0% reduction in calcification or growth (95% CI 31.0% to +9.6%), which is the number most readers arrive wanting
GeochemistryPaper Analysis
Earth's metallic core is supposed to be a sealed room: whatever fell into it 4.5 billion years ago stays there. In May 2025 a Göttingen-led team reported that Hawaiian basalts carry an excess of the isotope ruthenium-100, about nine parts per million , a signature that matches core metal and matches nothing else on the planet. The same rocks carry the tungsten-182 deficit you would expect from that source, an indepen
Conservation MethodsSystematic Review
Filter some water, lyse what the membrane caught, run a PCR, and you are supposed to learn which animals were recently swimming there. We went looking for every study we could open that surveyed the same water bodies twice, once with a filter and once with a net or a torch or a camera, and that reported a detection probability for both. We found twelve we could pool and seven more we could not. On a random effects mo