Hate to sound like a broken record, but we just set a scary new CO2 record

KATE YODER / GRIST – Just the news you’ve been waiting for: The amount of carbon dioxide in our planet’s atmosphere has reached a new high. April’s average was 413.52 parts per million, a new record, according to a spokesperson at Scripps Institution of Oceanography.

The last time there was this much CO2 in our atmosphere, there were trees growing at the South Pole. Humans weren’t yet a thing. In other words, we’re living in uncharted territory.

The planet’s carbon dioxide levels rise and fall over the course of each year, and usually peak in May when Earth’s vast northern forests spring back to life …

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