https://grist.org/climate/the-climate-policy-milestone-that-was-buried-in-the-2020-budget/

The climate policy milestone that was buried in the 2020 budget
By Emily Pontecorvo <https://grist.org/author/epontecorvo/> on Jan 8, 2020
at 3:58 am

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When President Trump signed a $1.4 trillion spending package in December to
keep the government funded through 2020, there was a climate policy
milestone buried in the budget. For the first time ever, the government
allocated funding for a federal agency to conduct geoengineering research.

A line item in the National Oceanic and Atmospheric Association’s budget
<https://appropriations.house.gov/sites/democrats.appropriations.house.gov/files/HR%201158%20-%20Division%20B%20-%20CJS%20SOM%20FY20.pdf>
provides
the agency with at least $4 million to study the stratosphere, the second
layer of the atmosphere up from the earth. That kind of research already
falls within the agency’s purview, but the language in the bill continues,
“including the impact of the introduction of material into the stratosphere
from changes in natural systems, increased air and space traffic, *proposals
to inject material to affect climate, and the assessment of solar climate
interventions*” (emphasis added).

Simultaneously, Democratic Representative Jerry McNerney of California
introduced a bill
<https://www.congress.gov/bill/116th-congress/house-bill/5519/text?r=15&s=1>
that
would bolster this new mandate by creating a formal solar climate
intervention research program at NOAA and making the agency responsible for
the oversight of proposals to conduct climate geoengineering experiments in
the United States.

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For geoengineering critics, the earmark and McNerney’s bill might sound
like cause for alarm. But experts and policymakers say that these twin
developments represent not an endorsement of geoengineering proposals but
an acknowledgment that they exist — and a desire to know more about their
benefits and drawbacks.

“This is, I think, one of the tools we might need,” Representative McNerney
told Grist. “So we need to develop the scientific understanding, a firm
understanding, of what it means and what the risks are so that we can
decide if it’s something we want to use or not.”

Geoengineering is a broad term that can refer to many activities that alter
Earth’s natural systems, but it’s typically thrown out to describe
controversial
schemes
<https://grist.org/article/for-geoengineers-a-scientific-existential-crisis/>
to
cool the planet. Scientists tend to favor the more precise term “climate
interventions,” with much of the discussion centering on a method called
solar radiation management. This strategy involves changing the albedo, or
reflectivity of the stratosphere, so that more sunlight is reflected back
into space before reaching the earth. This already happens when sunlight
bounces off of clouds, or when volcanoes erupt and emit fine particles into
the sky, so scientists have proposed artificially reproducing the same
effect by spraying a thick shroud of particles into the stratosphere.

The main benefit to this kind of intervention is that we would see the
results fast. Other plans that focus on removing carbon from the
atmosphere, like planting trees or using direct-air carbon capture
technology, would counteract global warming over decades, but changing the
albedo of the stratosphere could reduce heat in the climate system within a
few years. It’s also estimated to be a much cheaper approach.

Critics of geoengineering often argue that it doesn’t address many of the
problems <https://twitter.com/JacquelynGill/status/1071807850333249537> that
greenhouse gas emissions create, or that it might be used as a ploy
<https://www.desmogblog.com/2019/09/17/geoengineering-climate-change-risks-distraction>
by
the fossil fuel industry to weaken efforts to cut emissions, or that we
simply shouldn’t be messing with nature
<https://www.nytimes.com/2017/04/18/magazine/is-it-ok-to-engineer-the-environment-to-fight-climate-change.htmlhttps://www.nytimes.com/2017/04/18/magazine/is-it-ok-to-engineer-the-environment-to-fight-climate-change.html>
.

Kelly Wanser
<https://www.ted.com/talks/kelly_wanser_emergency_medicine_for_our_climate_fever>,
the executive director of the nonprofit SilverLining
<https://www.silverlining.ngo/>, which collaborated with McNerney on the
bill, recognizes that geoengineering is scary. She told Grist there are two
main reasons we should still try to understand the effects of solar
radiation management. “You might study them because you think this could be
an important policy against really rapid climate change,” she said, “or you
could study them because some other country will wrongly think that, and
you need to prove to them that this is a very bad idea.”

McNerney’s bill is still in early stages. It’s been sent to the House
Committee on Science, Space, and Technology, and McNerney is currently
looking for cosponsors. A formal geoengineering program at NOAA could still
be years away.

But even without one, the new infusion of cash will enable NOAA to conduct
much-needed “baseline” research. There is still a lot that scientists don’t
know about the current chemistry of the stratosphere. If we someday decide
to go down the path of spraying material into the atmosphere, having better
models of the chemistry of the stratosphere will help predict the outcomes.

“That’s really how I interpret this money,” Dave Fahey, director of NOAA’s
Chemical Science Division, told Grist. “It’s not so much to study
geoengineering or climate intervention, it’s to understand the stratosphere
as it exists today, the trends in the stratosphere over time, and how the
stratosphere is changing due to other causes like climate change.”

Fahey is a co-chair of the Scientific Assessment Panel of the Montreal
Protocol, an international agreement to protect the ozone layer. Every four
years the panel reviews the science of ozone depletion, and in their next
report, they plan to consider
<https://www.nrdc.org/experts/alex-hillbrand/when-rome-good-news-more-do-montreal-protocol>
the
potential effects of solar radiation management, which Fahey said could
disturb the ozone layer.

McNerney and Fahey point out that we only have one atmosphere, and
geoengineering research demands international cooperation
<http://www.srmgi.org/> to prevent any one nation from striking out alone
and screwing it up for the rest of us. But in the absence of Montreal
Protocol–style cooperation on geoengineering, Fahey said Congress has an
interest in getting more precise measurements and increased observations of
the stratosphere in order to detect changes, in case another nation decides
to try something.

McNerney’s bill also takes a baby step toward addressing the issue of
governance by imbuing NOAA with oversight responsibilities. The agency
would not have any regulatory power, but anyone planning a climate
engineering experiment would be required to report it to NOAA, and the
agency would assess proposals for factors like safety and whether they
would produce meaningful results.

Right now, scientists are nowhere near considering large-scale
geoengineering experiments. Harvard’s highly anticipated SCoPEx
<https://projects.iq.harvard.edu/keutschgroup/scopex> project, which has
been sold as the “first sun-dimming experiment
<https://www.nature.com/articles/d41586-018-07533-4>,” will only inject
between 100 grams and 2 kilograms of material into the stratosphere, and
aims simply to study how particles interact with one another in order to
improve models. It will cost at least $3 million. We are still many years
and many dollars away from using geoengineering as an easy way out of
climate catastrophe.

“Sometimes people think, ‘well, these things are scary and we’ll pull this
out of our back pocket at the last minute if we need to,’” said Wanser.
“But there’s nothing in your back pocket if you don’t do 5 or 10 years of
real science to try to figure it out.”

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