The Defense Department Is Worried About Climate Change – But Is a Huge Carbon Emitter
By Neta C. Crawford
Scientists and security analysts have warned for more than a decade that global warming is a potential national security concern.
They project that the consequences of global warming — rising seas, powerful storms, famine and diminished access to fresh water — may make regions of the world politically unstable and prompt mass migration and refugee crises.
Some worry that wars may follow.
Yet with few exceptions, the U.S. military's significant contribution to climate change has received little attention. Although the Defense Department has significantly reduced its fossil fuel consumption since the early 2000s, it remains the world's single largest consumer of oil — and as a result, one of the world's top greenhouse gas emitters.
A Broad Carbon Footprint
I have studied war and peace for four decades. But I only focused on the scale of U.S. military greenhouse gas emissions when I began co-teaching a course on climate change and focused on the Pentagon's response to global warming. Yet, the Department of Defense is the U.S. government's largest fossil fuel consumer, accounting for between 77 percent and 80 percent of all federal government energy consumption since 2001.
Today China is the world's largest greenhouse gas emitter, followed by the U.S. In 2017 the Pentagon's greenhouse gas emissions totaled over 59 million metric tons of carbon dioxide equivalent. If it were a country, it would have been the world's 55th largest greenhouse gas emitter, with emissions larger than Portugal, Sweden or Denmark.
The largest sources of military greenhouse gas emissions are buildings and fuel. The Defense Department maintains over 560,000 buildings at approximately 500 domestic and overseas military installations, which account for about 40 percent of its greenhouse gas emissions.
The rest comes from operations. In fiscal year 2016, for instance, the Defense Department consumed about 86 million barrels of fuel for operational purposes.
Why Do the Armed Forces Use So Much Fuel?
Military weapons and equipment use so much fuel that the relevant measure for defense planners is frequently gallons per mile.
Aircraft are particularly thirsty. For example, the B-2 stealth bomber, which holds more than 25,600 gallons of jet fuel, burns 4.28 gallons per mile and emits more than 250 metric tons of greenhouse gas over a 6,000 nautical mile range. The KC-135R aerial refueling tanker consumes about 4.9 gallons per mile.
A single mission consumes enormous quantities of fuel. In January 2017, two B-2B bombers and 15 aerial refueling tankers traveled more than 12,000 miles from Whiteman Air Force Base to bomb ISIS targets in Libya, killing about 80 suspected ISIS militants. Not counting the tankers' emissions, the B-2s emitted about 1,000 metric tons of greenhouse gases.
Quantifying Military Emissions
Calculating the Defense Department's greenhouse gas emissions isn't easy. The Defense Logistics Agency tracks fuel purchases, but the Pentagon does not consistently report DOD fossil fuel consumption to Congress in its annual budget requests.
The Department of Energy publishes data on DOD energy production and fuel consumption, including for vehicles and equipment. Using fuel consumption data, I estimate that from 2001 through 2017, the DOD, including all service branches, emitted 1.2 billion metric tons of greenhouse gases. That is the rough equivalent of driving of 255 million passenger vehicles over a year.
Of that total, I estimated that war-related emissions between 2001 and 2017, including "overseas contingency operations" in Afghanistan, Pakistan, Iraq and Syria, generated over 400 million metric tons of CO2 equivalent — roughly equivalent to the greenhouse emissions of almost 85 million cars in one year.
Real and Present Dangers?
The Pentagon's core mission is to prepare for potential attacks by human adversaries. Analysts argue about the likelihood of war and the level of military preparation necessary to prevent it, but in my view, none of the U.S.' adversaries — Russia, Iran, China and North Korea — are certain to attack the U.S.
Nor is a large standing military the only way to reduce the threats these adversaries pose. Arms control and diplomacy can often de-escalate tensions and reduce threats. Economic sanctions can diminish the capacity of states and nonstate actors to threaten the security interests of the U.S. and its allies.
In contrast, climate change is not a potential risk. It has begun, with real consequences to the U.S. Failing to reduce greenhouse gas emissions will make the nightmare scenarios strategists warn against — perhaps even "climate wars" — more likely.
Climate change 'is already fuelling conflict in Africa' - Energy Live News https://t.co/zUnQp9rMBd— Climate & Migration (@Climate & Migration)1557303240.0
A Case for Decarbonizing the Military
Over the past last decade the Defense Department has reduced its fossil fuel consumption through actions that include using renewable energy, weatherizing buildings and reducing aircraft idling time on runways.
The DOD's total annual emissions declined from a peak of 85 million metric tons of carbon dioxide equivalent in 2004 to 59 million metric tons in 2017. The goal, as then-General James Mattis put it, is to be "unleashed from the tether of fuel" by decreasing military dependence on oil and oil convoys that are vulnerable to attack in war zones.
Since 1979, the U.S. has placed a high priority on protecting access to the Persian Gulf. About one-fourth of military operational fuel use is for the U.S. Central Command, which covers the Persian Gulf region.
As national security scholars have argued, with dramatic growth in renewable energy and diminishing U.S. dependence on foreign oil, it is possible for Congress and the president to rethink our nation's military missions and reduce the amount of energy the armed forces use to protect access to Middle East oil.
I agree with the military and national security experts who contend that climate change should be front and center in U.S. national security debates. Cutting Pentagon greenhouse gas emissions will help save lives in the U.S., and could diminish the risk of climate conflict.
Reposted with permission from our media associate The Conversation.
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It's going to be back-to-school time soon, but will children go into the classrooms?
The American Academy of Pediatrics (AAP) thinks so, but only as long as safety measures are in place.
Keeping Schools Safe<p>What will safer schools look like?</p><p>In a <a href="https://jamanetwork.com/journals/jama/fullarticle/2766822" target="_blank">JAMA article</a> published last month, <a href="https://www.jhsph.edu/faculty/directory/profile/1781/joshua-m-sharfstein" target="_blank">Dr. Joshua Sharfstein</a>, a pediatrician and professor at the Johns Hopkins Bloomberg School of Public Health, outlined suggestions — many of which are similar to AAP's.</p><p>Remote learning protocols must stay in place, especially as some schools stagger home and in-building learning. If another shutdown needs to occur, children will rely on distance learning completely, so it must be easy to switch to, he said.</p><p>He suggested giving parents a daily checklist to document their child's health. Kids should be screened quickly on arrival and be given hygiene supplies. Maintenance staff should use appropriate PPE and have regular cleaning schedules. A notification system should be in place if a case is identified, Sharfstein recommended.</p><p><a href="https://www.albany.edu/rockefeller/faculty/erika-martin" target="_blank">Erika Martin</a>, PhD, an associate professor of public administration and policy at University at Albany, said nutrition assistance and health services should be included. She called for tutoring programs with virtual options as well as technology access.</p>
Supporting Staff<p>Teachers and staff will be affected by safeguarding measures, noted <a href="https://directory.sph.umn.edu/bio/sph-a-z/rachel-widome" target="_blank">Rachel Widome</a>, PhD, an associate professor of epidemiology and community health at University of Minnesota.</p><p>"In order for all of the in-school precautions to work well, we'll be asking a lot of teachers and staff," Widome told Healthline. In addition to their usual workload, they'll now be asked to monitor mask-wearing, ensure children are keeping distance, and be aware of any symptoms.</p><p>Along with Sharfstein, Widome called for an increase in financial support. More employees will likely be required so teachers and staff members can keep up with the added demands.</p>
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