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If President-elect Donald Trump actually believes his own warnings about the threats of immigration, he should talk about ways to slow global warming, as well. Rising sea level, caused by the melting of the Antarctic and Greenland ice caps, will probably displace tens of millions of people in the decades ahead, and many may come to North America as refugees.

Climate change will cause a suite of problems for future generations, and it's arguably the most pressing issue of our time. A year ago, world leaders gathered in Paris to discuss strategies to curb greenhouse gas emissions, and scientists at every corner of the globe confirm that humans are facing a crisis.

However, climate change is nearly ignored by American politicians and lawmakers. It was not discussed in depth during this past election cycle's televised presidential debates. And, when climate change does break the surface of public discussion, it polarizes Americans like almost no other political issue. Some conservatives, including Trump, still deny there's even a problem.

"We are in this bizarre political state in which most of the Republican Party still thinks it has to pretend that climate change is not real," says Jonathan F.P. Rose, a New York City developer and author of The Well-Tempered City, which explores in part how low-cost green development can mitigate the impacts of rising global temperatures and changing weather patterns.

Rose says that progress cannot be made in drafting effective climate strategies until national leaders agree there's an issue.

"We have such strong scientific evidence," he says. "We can disagree on how we're going to solve the problems, but I would hope we could move toward an agreement on the basic facts."

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That such a serious planetwide crisis has become a divide across the American political battlefield is a tragedy to Peter Kalmus, an earth scientist with the Jet Propulsion Laboratory at Caltech in Pasadena, who agreed to be interviewed for this story on his own behalf, (not on behalf of NASA, JPL, or Caltech).

Kalmus says that climate change is happening whether politicians want to talk about it or not.

"CO2 molecules and infrared photons don't give a crap about politics, whether you're liberal or conservative, Republican or Democrat, or anything else," he says.

Slowing climate change is essential, since adapting to all of its impacts may be impossible. Governments must strive for greater resource efficiency, shift to renewable energy, and transition from conventional to more sustainable agricultural practices.

America's leaders must also implement a carbon pricing system that places a financial burden on fossil fuel producers and reduces greenhouse gas emissions, climate activists say. But there may be little to zero hope that such a system will be installed at the federal level as Trump prepares to move into the White House.

Trump has threatened to reverse any commitments the United States agreed to in Paris. He even selected a well-known skeptic of climate change, Myron Ebell, to head his US Environmental Protection Agency transition team, and chose a leading critic of the EPA, Scott Pruitt, to be the agency's permanent head.

Steve Valk, communications director for the Citizens' Climate Lobby, says the results of the presidential election are a discouraging setback in the campaign to slow emissions and global warming.

"There's no doubt that the steep hill we've been climbing just became a sheer cliff," he says. "But cliffs are scalable."

The American public must demand that Congress implement carbon pricing," Valk says. He says the government is not likely to face and attack climate change unless voters force them to.

"The solution is going to have to come from the people," he said. "Our politicians have shown that they're just not ready to implement a solution on their own."

There is no question that the Earth is warming rapidly, and that this trend is having an impact. It is disrupting agriculture. Glacial water sources are vanishing. Storms and droughts are becoming more severe. Altered winds and ocean currents are impacting marine ecosystems. So is ocean acidification, another outcome of carbon dioxide emissions.

The sea is rising and will eventually swamp large coastal regions and islands. As many as 200 million people could be displaced by 2050. For several years in a row now, each year has been warmer than any year prior in recorded temperature records, and by 2100, it may be too hot for people to permanently live in the Persian Gulf.

click to enlarge Mothers Out Front organized an oil train protest in front of the Federal Building on State Street in August. - FILE PHOTO
  • FILE PHOTO
  • Mothers Out Front organized an oil train protest in front of the Federal Building on State Street in August.

World leaders and climate activists made groundbreaking progress toward slowing these effects at the 2015 Paris climate conference. Leaders from 195 countries drafted a plan of action to reduce global greenhouse gas emissions and steer the planet off its predicted course of warming.

The pact, which addresses energy, transportation, industries and agriculture — and asks leaders to regularly upgrade their climate policies — is intended to keep the planet from warming by 2.7 degrees Fahrenheit between pre-industrial years and the end of this century. Scientists forecast that an average global increase of 3.6 degrees Fahrenheit will have devastating consequences for humanity.

The United States pledged to cut greenhouse gas emissions by 26 percent from 2005 levels within a decade. China, Japan, and nations of the European Union made similar promises. More recently, almost 200 nations agreed to phase out hydrofluorocarbons, which are extremely potent but short-lived greenhouse gases emitted by refrigerators and air conditioners, and to reduce the emissions from the shipping and aviation industries.

But in the wake of such promising international progress, and as 2016 draws to a close as the third record warm year in a row, many climate activists are disconcerted both by United States leaders' recent silence on the issue and by the outcome of the presidential election. Mark Sabbatini, editor of the newspaper Icepeople in Svalbard, Norway, says that shortsighted political scheming has pushed climate change action to the back burner. He wants politicians to start listening to scientists.

"But industry folks donate money and scientists get shoved aside in the interest of profits and re-election," says Sabbatini, who recently had to evacuate his apartment as unprecedented temperatures thawed out the entire region's permafrost, threatening to collapse buildings.

Short-term goals and immediate financial concerns distract leaders from making meaningful policy advances on climate.

"In Congress, they look two years ahead," Sabbatini says. "In the Senate, they look six years ahead. In the White House, they look four years ahead."

The 300 nationwide chapters of the Citizens' Climate Lobby are calling on local governments and chambers of commerce across America to voice support for a revenue-neutral carbon fee. The hope is that leaders in Congress will hear the demands of the people. This carbon fee would impose a charge on producers of oil, natural gas, and coal.

As a direct result, all products and services that depend on or directly use those fossil fuels would cost more for consumers, who would be incentivized to buy less. Food shipped in from far away would cost more than locally grown alternatives. Gas for heating, electricity generated by oil and coal, and driving a car would become more expensive.

"Bicycling would become more attractive, and so would electric cars and home appliances that use less energy," says Kalmus, an advocate of the revenue-neutral carbon fee.

Promoting this fee system is essentially the Citizens' Climate Lobby's entire focus.

"This would be the most important step we take toward addressing climate change," Valk says.

By the carbon fee system, the revenue from fossil fuel producers would be evenly distributed by the collecting agencies among the public, perhaps via a tax credit. Recycling the dividends back into society would make it a fair system, since poorer people, who tend to use less energy than wealthier people and are therefore less to blame for climate change, would come out ahead, Valk says.

The system would also place a tariff on incoming goods from nations without a carbon fee. This would keep American industries from moving overseas and maybe even prompt other nations to set their own price on carbon.

But there's a problem with the revenue-neutral carbon fee, according to other climate activists: it doesn't support social programs that may be aimed at reducing society's carbon footprint.

"It will put no money into programs that serve disadvantaged communities who, for example, might not be able to afford weatherizing their home and lowering their energy bill, or afford an electric vehicle or a solar panel," says Renata Brillinger, executive director of the California Climate and Agriculture Network. "It doesn't give anything to public schools for making the buildings more energy efficient, and it wouldn't give any money to farmers' incentive programs for soil building."

Brillinger's organization advocates for farmers to adopt practices that actively draw carbon out of the atmosphere, such as planting trees and maintaining ground cover to prevent erosion. Funding is needed to support these farmers, who may go through transitional periods of reduced yields and increased costs, she says. California's cap-and-trade system sets up an ample revenue stream for this purpose that a revenue-neutral system does not, Brillinger says.

But Valk says that establishing a carbon pricing system must take into account the notorious reluctance of conservatives in Congress.

"You aren't going to get a single Republican in Congress to support legislation unless it's revenue-neutral," he says. "Any policy is useless if you can't pass it in Congress."

In Washington, D.C., the nation's leaders continue tussling over popular issues such as immigration, taxes, health care, abortion, guns, and foreign affairs.

Climate change activists wish they would think more about soil. That's because stopping greenhouse gas emissions alone will not stop climate change. The carbon dioxide emitted through centuries of industrial activity will continue to drive warming unless it is removed from the air and put somewhere.

"There are only three places carbon can go," Brillinger says. "It can go into the atmosphere, where we don't want it, into the ocean, where we also don't want it because it causes acidification, or into soil and woody plants where we do want it. Carbon is the backbone of all forests and is a critical nutrient of soil."

But most of the Earth's soil carbon has been lost to the atmosphere, causing a spike in atmospheric carbon. In the 1700's, the Earth's atmosphere contained less than 280 parts per million of carbon dioxide. Now, we are at more than 400 and counting. Climate experts generally agree that the atmospheric carbon level must be reduced to 350 or less if we are to keep at bay the most disastrous possible impacts of warming.

This is why farmers and the soil they work are so important in mitigating climate change. By employing certain practices and abandoning others, farmers and ranchers can turn acreage into valuable carbon sinks — a general agricultural approach often referred to as "carbon farming."

Conventional agriculture practices tend to emit carbon dioxide. Regular tilling of the soil, for example, causes soil carbon to bond with oxygen and float away as carbon dioxide. Tilling also causes erosion, as do deforestation and overgrazing. With erosion, soil carbon enters waterways, creating carbonic acid — the direct culprit of ocean acidification. Researchers estimate that unsustainable farming practices have caused as much as 80 percent of the world's soil carbon to turn into carbon dioxide.

By carbon farming, those who produce the world's food can simultaneously turn their land into precious carbon sinks. The basic tenets of carbon farming include growing trees as windbreaks and focusing on perennial crops, like fruit trees and certain specialty grain varieties, which demand less tilling and disturbance of the soil.

click to enlarge An extremely heavy downpour washed out sections of road in the Town of Richmond in June 2015. The same thing happened the previous summer. More frequent, heavier downpours are associated with climate change. - FILE PHOTO
  • FILE PHOTO
  • An extremely heavy downpour washed out sections of road in the Town of Richmond in June 2015. The same thing happened the previous summer. More frequent, heavier downpours are associated with climate change.

Eric Toensmeier, a senior fellow with the climate advocacy group Project Drawdown and the author of The Carbon Farming Solution, says that many other countries are far ahead of the United States in both recognizing the importance of soil as a place to store carbon, and funding programs that help conventional farmers shift toward carbon farming practices.

France, for instance, initiated a sophisticated program in 2011 that calls for increasing soil carbon worldwide by 0.4 percent every year. Healthy soil can contain 10 percent carbon or more, and France's program has the potential over time to decelerate the increase in atmospheric carbon levels.

Toensmeier is optimistic about the progress being made in the United States, too. The US Department of Agriculture funds programs that support environmentally friendly farming practices that protect watersheds or enhance wildlife habitat, largely through planting perennial grasses and trees.

"And it turns out a lot of the practices they're paying farmers to do to protect water quality or slow erosion also happen to sequester carbon," Toensmeier says.

He says it appears obvious that the federal government is establishing a system by which it will eventually pay farmers directly to sequester carbon. Such a direct faceoff with climate change, however, may be a few years away still.

Climate activists may even need to wait until 2021.

"First we need a president who acknowledges that climate change exists," Toensmeier said.

Climate reform advocates still talk about Bernie Sanders' fiery attack on fracking as a source of global warming in the May primary debate with Hillary Clinton.

"If we don't get our act together, this planet could be 5 to 10 degrees warmer by the end of this century," Sanders said then. "Cataclysmic problems for this planet. This is a national crisis."

Sanders was not exaggerating. The Earth has already warmed by 1.7 degrees Fahrenheit since 1880, and it's getting hotter. Even with the advances made in Paris, the world remains on track to be 6.1 degrees Fahrenheit warmer by 2100 than it was in pre-industrial times, according to a United Nations emissions report released in early November. The authors of another paper published in January in the journal Nature predict that temperatures will rise as much as 10 degrees Fahrenheit.

In light of the scientific consensus, conservatives' denial of climate change looks childish at best and dangerous at worst. In low-lying Florida, so vulnerable to the rising sea, an unofficial policy from the state's Republican leadership has effectively muzzled state employees from even mentioning "climate change" and "global warming" in official reports and communications.

Republican Senator Ted Cruz from Texas suggested that NASA focus its research less on climate change and more on space exploration, according to The Christian Science Monitor.

Most frightening of all, maybe, is the incoming American president's stance on the matter: Trump said in a 2012 tweet that global warming is a hoax by China. In January 2014, during a brief spell of cold weather, he asked via Twitter, "Is our country still spending money on the GLOBAL WARMING HOAX?"

While most of the rest of the world remains poised to advance emissions reductions goals, Trump is aiming in a different direction. The Trump-Pence website vows to "unleash America's $50 trillion in untapped shale, oil, and natural gas reserves, plus hundreds of years in clean coal reserves." His webpage concerning energy goals only mentions reducing emissions once, and it makes no mention of climate change or renewable energy.

While meaningful action at the federal level is probably years away, at the local level, progress is coming — even in communities led by Republicans, according to developer-writer Rose. That's because local politicians face a level of accountability from which national leaders are often shielded, he says.

"At the city level, mayors have to deliver real results," Rose says. "They have to protect their residents and make wise investments on behalf of their residents. The residents see what they're doing and hold them accountable."

Restructuring and modifying our cities, which are responsible for about half of America's carbon footprint, "will be critical toward dealing with climate change," he says.

"On the coast we'll have sea level rise," he says. "Inland, we'll have flooding and heat waves. Heat waves cause more deaths than hurricanes."

Simply integrating nature into city infrastructure is a very low-cost but effective means to counter the changes that are coming, Rose says. Many cities are planting thousands of street trees, for example. Trees draw in atmospheric carbon as they grow and, through shade and evaporative cooling effects, can significantly reduce surface temperatures by as much as 6 degrees Fahrenheit in some circumstances, he says.

Laws and policies that take aim at reduced emissions targets can be efficient tools for generating change across entire communities. However, Kalmus, the earth scientist, says it's important that individuals, too, reduce their own emissions through voluntary behavior changes, rather than simply waiting for change to come from leaders and lawmakers.

"If you care about climate change, it will make you happier," he says. "It makes you feel like you're pioneering a new way to live. For others, you're the person who is showing the path and making them realize it's not as crazy as it seems."

Kalmus, who lives in Altadena, California, with his wife and two sons, has radically overhauled his lifestyle to reduce his carbon footprint. Since 2010, he has cut his own emissions by a factor of 10 — from 20 tons per year to just 2, by his own estimates. This personal transformation is the subject of his forthcoming book, Being the Change: Live Well and Spark a Climate Revolution, due out in 2017.

Kalmus rides a bike most places, eats mostly locally grown food, raises some of it in his own yard, has stopped eating meat and — one of the most important changes—has all but quit flying places.

He says he hopes to serve as a model and help spark a transition to an economy that does not depend on constant growth, as ours currently does. One day it will be socially unacceptable to burn fossil fuel, he says, just as it's become shunned to waste water in drought-dried California; the oil industry will eventually become obsolete.

"We need to transition to an economy that doesn't depend on unending growth," Kalmus says.

Unless we slow our carbon emissions and our population growth now, depletion of resources will catch up with us, he says.

"We need to shift to a steady-state economy and a steady-state population," he says. "Fossil-fueled civilization cannot continue forever."

Though Americans will soon have as president a man who is essentially advocating for climate change, Valk, at the Citizens' Climate Lobby, expects time — and warming — to shift voter perspectives.

"As more and more people are personally affected by climate change, like those recently flooded out in Louisiana and North Carolina, people of all political persuasions will see that acting on climate change is not a matter of partisan preferences, but a matter of survival," he says.

Alastair Bland is a freelance journalist in San Francisco. He writes about water, fisheries, agriculture, and the environment, and his work has appeared at NPR.org, SmithsonianMag.com, the Sacramento News and Review, and Yale E360.

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