Carbon dioxide levels hitting historic high is the final wake-up call - The Week

At 415 ppm, carbon dioxide level is at highest ever in human history

Sleeping in a Closed Room - Indoor CO2 Analyze - vThings Blog

Pathways to net-zero emissions from aviation

Emissions from wildfires hit record high in 2021 as climate change drives fire threat

Carbon dioxide levels hit highest mark in human history, despite coronavirus - The Washington Post

Quick fact rapidly rising CO2 levels Related Info – Climate Solutions Advancement Network (ClimateSAN)

Financial Times on X: The concentration of carbon dioxide in the atmosphere has reached its highest level ever recorded. 'It is a reminder of this time that is running out', scientists say

CO2 has been higher in the past

Carbon Dioxide Is Rising at Record Rates

RealClimate: As Soon as Possible

400(?) years of warming

On Utqiagvik's edge, an observatory measures the gases that are warming the Arctic and the planet • Alaska Beacon

Earth's carbon dioxide levels exceed highest point in human history

Carbon dioxide now more than 50% higher than pre-industrial levels