Amplifiers | EARTH 104: Earth and the Environment (Development)
https://www.e-education.psu.edu/earth104/node/1261
Trees and land absorbed almost no CO2 last year. Is nature’s carbon sink failing? | Oceans | The Guardian
https://www.theguardian.com/environment/2024/oct/14/nature-carbon-sink-collapse-global-heating-models-emissions-targets-evidence-aoe