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Author: Julia Dohner

Julia is a PhD student at Scripps Institution of Oceanography in La Jolla, California. Her focus is on biogeochemistry, which, as the name suggests, centers on the combined effects of biological, geological and chemical processes on the earth system. She is advised by Dr. Ralph Keeling and is modeling the global carbon cycle to better understand how much carbon dioxide ends up in the atmosphere. When not at her computer writing code, Julia can usually be found reading and/or thinking about food.
Reduction in Deforestation Influencing Atmospheric CO2
Biogeochemistry

Reduction in Deforestation Influencing Atmospheric CO2

Since 2000, atmospheric CO2 hasn’t been rising as quickly as we expected. It may be because plants on land have…
September 25, 2018October 8, 2018 Julia Dohner
Evidence of the Ocean Releasing CO2
Biogeochemistry

Evidence of the Ocean Releasing CO2

Starting 8,000 years ago, a modest but unusual rise in atmospheric CO2 has kept our planet livable and paved the…
August 30, 2018August 30, 2018 Julia Dohner
What’s happening to carbon in the warming Arctic?
Climate Change

What’s happening to carbon in the warming Arctic?

The Arctic, warming at unprecedented rates, is undergoing profound changes. Using recent atmospheric CO2 measurements, Su-Jong Jeong and his colleagues…
July 30, 2018July 31, 2018 Julia Dohner
The future according to the Paris Agreement? Not so simple.
Climate Change

The future according to the Paris Agreement? Not so simple.

Meet the Paris Agreement goal and limit the human-caused rise in average global temperature to 1.5 ˚C? Sounds good. Do…
June 28, 2018June 28, 2018 Julia Dohner
Ocean to Table Mercury: a Rising Risk
Fisheries

Ocean to Table Mercury: a Rising Risk

For fish eaters, mercury consumption is an ever-present worry but often pushed to the backs of our minds. But the…
May 31, 2018May 30, 2018 Julia Dohner
The Declining Japanese Eel Population: Is Ocean Circulation to Blame?
Biological oceanography

The Declining Japanese Eel Population: Is Ocean Circulation to Blame?

Recent declines in Japanese eel populations have been attributed to overfishing, but that may not be the only factor at…
April 12, 2018April 11, 2018 Julia Dohner
More Intense Summer to Winter Swings in Oceanic Dissolved CO2
Ocean Acidification

More Intense Summer to Winter Swings in Oceanic Dissolved CO2

Ocean CO2 levels vary depending on the time of year. Landschützer and his colleagues are the first to show that…
March 5, 2018March 5, 2018 Julia Dohner
Which Paris Agreement Countries Mention the Ocean, and Why?
Policy

Which Paris Agreement Countries Mention the Ocean, and Why?

Do nations mention the impact of climate change on the ocean in their Paris Agreement pledges? And why do some…
February 5, 2018February 5, 2018 Julia Dohner
Ocean Acidification: No Longer Confined to the Sea Surface
Ocean Acidification

Ocean Acidification: No Longer Confined to the Sea Surface

Acidification, one of the highest-visibility impacts of human activity on the ocean, was thought to be confined to its upper…
January 8, 2018January 8, 2018 Julia Dohner
Uneven Ocean Warming as the Planet Shed its Ice
Natural History

Uneven Ocean Warming as the Planet Shed its Ice

Our oceans underwent major changes when the planet transitioned from the Last Glacial Maximum to our current interglacial (or “between…
December 11, 2017December 10, 2017 Julia Dohner
What happens to CO2 levels during El Niño?
Biogeochemistry

What happens to CO2 levels during El Niño?

Thanks to NASA’s new Orbiting Carbon Observatory-2 satellite, we now know when and where CO2 levels change during El Niño,…
November 15, 2017November 15, 2017 Julia Dohner
The Subtle Response of Plants to Rising CO2 Levels
Biogeochemistry

The Subtle Response of Plants to Rising CO2 Levels

Plants need carbon dioxide. What do they do when there’s more and more of it in the atmosphere?
October 16, 2017June 6, 2019 Julia Dohner
New Evidence of Erosion, Weathering and CO2 Together Regulating Glacier Formation
Biogeochemistry

New Evidence of Erosion, Weathering and CO2 Together Regulating Glacier Formation

Ice cover on earth extends and recedes over thousands of years. But what drives these fluctuations? Moreover, what guarantees that…
September 18, 2017September 10, 2017 Julia Dohner
Carbon Dioxide In and Methane Out: the Surprising Chemistry of an Arctic Methane Seep Field
Climate Change

Carbon Dioxide In and Methane Out: the Surprising Chemistry of an Arctic Methane Seep Field

The bad news: coastal frozen sediments in the Arctic are melting and emitting methane, a potent greenhouse gas, into the…
August 15, 2017August 14, 2017 Julia Dohner
Biological oceanography

Harmful Algal Blooms Find Homes Further North as Waters Warm

Before the late 20th century, reports of illness from toxin-producing algae had been absent from most northern coastlines. But in…
July 14, 2017August 14, 2017 Julia Dohner
Human impacts

New Nitrogen in Town: Nitrogen Deposition on the Open Ocean

Life in the ocean depends on a variety of nutrients, an important one being nitrogen. Phytoplankton, at the bottom of…
June 22, 2017June 22, 2017 Julia Dohner
Biological oceanography

The Missing Mechanism: How Ocean Fronts Impact Sinking Organic Matter

Phytoplankton are central to the ocean’s carbon cycle, converting carbon dioxide into organic molecules that sink into the sea’s interior.…
May 23, 2017June 21, 2017 Julia Dohner
Climate Change

A New Tool for Understanding Where Carbon Dioxide Goes

We know that CO2 is being absorbed from the air by the ocean, but how can we measure how much…
April 21, 2017June 21, 2017 Julia Dohner
Climate Change

Is the Deep Ocean Warming Too?

It’s been shown that the surface of the South Pacific Ocean has been warming by absorbing excess heat from the…
March 24, 2017October 29, 2018 Julia Dohner

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