Carbon Entering the Atmosphere at Highest Rate Yet

Even if carbon emissions are reaching a "plateau," that still represents an unprecedented amount of the gas entering the atmosphere every year.

1 minute read

March 22, 2017, 11:00 AM PDT

By Philip Rojc @PhilipRojc


While the ideological battles rage on over climate change, an unprecedented amount of carbon dioxide is still flowing into the atmosphere, and it respects no manmade political border.

Chelsea Harvey writes, "According to data from the National Oceanic and Atmospheric Administration, carbon dioxide levels jumped by three parts per million in both 2015 and 2016 and now rest at about 405 parts per million."

While there have been reports of a leveling-off in emissions, plateaus aren't exactly canyons or valleys. "And even if these emission levels really are starting to plateau — and it will be years before we can say whether that's actually the case, or whether the recent flattening is just a blip on an otherwise upward trend — they're still evening out at an all-time high, after decades of climbing."

Monday, March 13, 2017 in The Washington Post

Young Professional

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching. Mary G., Urban and Environmental Planner

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching.

Mary G., Urban and Environmental Planner

Get top-rated, practical training for planners

"Planetizen federal action tracker" logo superimposed over black and white image of US Capitol dome.

Planetizen Federal Action Tracker

A weekly monitor of how Trump’s orders and actions are impacting planners and planning in America.

September 16, 2026 - Zachary Whalen

Passengers board an Amtrak train under a cloudy sky.

Amtrak, CN end decades-long dispute with eight-year agreement

The new operating agreement establishes an updated framework for the companies to work together, including processes to resolve disputes.

September 18, 2026 - Mass Transit

The Gross Reservoir, a large body of water surrounded by trees and mountains.

Judges permit Denver to divert 77,000 acre feet from the Colorado River for reservoir expansion

Overuse and climate change have caused the Colorado River’s water levels to plummet.

September 18, 2026 - Inside Climate News

A painted bus lane in NYC.

NYC DOT wants faster, more permanent street upgrades

The city is examining ways to build more concrete infrastructure without getting entangled in 'decades-long' projects.

September 21 - NYC Streetsblog

A woman looks at a utility bill.

'Something we’ve never seen before:' rising utility rates could strain city finances nationwide

Data centers, climate change and other factors have caused utility rates in the United States to increase by 38% since 2020.

September 21 - Smart Cities Dive

A person scuba diving in a coral reef off Guam.

Trump to overrule local leaders, lease millions of acres of America’s Pacific Island territories’ seafloors to mining companies

International law says that the Indigenous people of America’s territories have a right to prior and informed consent regarding projects that impact their countries.

September 21 - Grist