As the global climate emergency worsens, grounds for hope and optimism continue to emerge

It was the best of summers, it was the worst of summers. It was the summer the United Nations declared a healthy environment a universal human right, and a summer that shattered heat records across the globe. The U.S. enacted a historic climate bill not long after the Supreme Court struck down the Environmental Protection Agency’s Clean Power Plan. Climate scientists said there was still hope for keeping global warming below 1.5 degrees Celsius, while the American West’s worst drought in 1,200 years continued for its 22nd summer.

The struggle to keep climate change from spinning out of control feels nothing short of epic, as if ordinary mortals were powerless observers to a battle between giants that will determine whether and how we survive. Yet if we weren’t collectively doing what modern humans do — burning fossil fuels, clearing land for agriculture, raising and eating billions of animals, driving on the roads we paved, making things in factories, consuming and consuming — there would be no epic struggle. We are the giants.

But being integral to the problem also makes every person integral to where we go from here.  Powerlessness is an illusion. Like a murmuration of starlings wheeling through the air in a synchronized but unchoreographed ballet, small choices by individuals cascade across society and shift its direction, unpredictably and sometimes radically.

This is why there remains a case for hope, if not actual optimism, even as climate change accelerates toward climate chaos. Humans, working individually and collectively, have removed the biggest technological barriers to stopping the rise in greenhouse gas emissions. Most of the policy and economic barriers continue to crumble too, especially when it comes to replacing fossil fuels with wind and solar. As a result, our power supply will continue to get cleaner even in states that prefer their air polluted.

Government must still do much more, and many technical challenges still need to be worked out. For the first time, though, a decarbonizing grid finally gives ordinary people a role in determining the continued habitability of our planet, through individual actions that collectively push society in a new direction.

We’ve done this before. Consider the anti-littering campaign of the 1960s that made a once-commonplace behavior unthinkable for millions of Americans. Or take the public response to the ozone hole crisis of the 1970s, when scientists discovered that the chemical aerosols emitted by spray cans were migrating up to the stratosphere and reacting with sunlight to eat away at the Earth’s protective ozone layer. While the federal government dithered, consumers acted. They abandoned aerosols in favor of pump bottles for cleaning products, roll-on deodorants and sprays reformulated to remove the chlorofluorocarbons (CFCs) causing the problem. The public response led to government action, culminating in the 1987 Montreal Protocol phasing out CFCs worldwide.

Individual choices change history when people recognize the need to alter their behavior, but only if they have acceptable alternatives that others can copy easily. Once it becomes commonplace, the planet-friendly choice can even feel like the only morally acceptable option. Individuals and even companies want to avoid the stain of public opprobrium — the reason so many corporations today have adopted sustainability goals.

Many threats are too great to leave to voluntary action, or too hard for enough people to understand or act on individually. We needed top-down policies to decarbonize the electric sector; voluntary investments in rooftop solar alone could never do it. We will always need government agencies like the EPA and the Food and Drug Administration to regulate toxins and dangerous products. Simply trying to empower consumers can backfire, as Californians found when a right-to-know law enacted by proposition led to companies labeling pretty much everything as cancer-causing, just to be on the safe side.

But consumer choice will be a key factor in decarbonizing buildings and transportation now that renewable energy is taking over the electric grid. As people learn about the dangers of using natural gas indoors, they will opt instead for high-efficiency heat pumps and electric induction stoves, and builders will respond to changing demand by no longer connecting homes to gas lines. The new Inflation Reduction Act, with its generous rebates for home electrification, sped up the timeline for the demise of gas, but consumer preference will be the deciding factor.

Similarly, the IRA’s rebates for electric vehicle purchases will make consumers the killers of Big Oil. The transportation sector makes up the biggest slice of U.S. carbon emissions, and most of that is attributable to personal automobiles. Getting people out of their cars and on to bicycles or mass transit has been frustratingly hard because most of our communities were built around the automobile. The arrival of electric vehicles finally offers such an attractive alternative to the gas guzzler that it’s just a question of when, not if, the internal combustion engine goes the way of the horse-drawn buggy.

The battery technology that makes electric vehicles possible also allows every gasoline-powered tool to be electrified, including lawn mowers, weed-whackers and leaf blowers. Gasoline-powered lawn equipment is astoundingly polluting, in terms of both carbon emissions and smog-creating volatile organic compounds. It’s also so noisy that neighbors will pressure neighbors to switch to electric as the technology gets better and cheaper. California, Washington, D.C. and many localities have banned gas-powered leaf blowers, but consumer preference alone should eventually eliminate the market for them.

Consumer choice could also lower carbon emissions in sectors of the economy that are famously difficult to electrify. Within a few years you may be able to fly on a plane using biofuel or live in a building made with low-emission steel and concrete that sequesters carbon. As we’ve seen with other technologies, though, mass adoption depends on these alternatives being cheaper, better-performing or both. That will take time.

Eating a plant-based diet stands out as the individual action with the greatest climate impact, according to the climate solutions handbook Drawdown. People are beginning to catch on to the meat industry’s outsized impact on climate change, but it’s the second condition — people having alternatives they really like — that keeps the meat industry in business. Veganism is on the rise (led, of all people, by athletes), but meat consumption continues to grow too.

If some visionary thinkers are right, in a few years we will all happily be eating lab-grown meat and healthy plant-based meat substitutes because they will outcompete animal products on price, taste and convenience. Removing animals from our food supply will have cascading beneficial effects as it frees up land now used to grow animal feed for more planet-friendly uses such as carbon-sequestering forests and wildlife habitat.

For now, as anyone who has tried to stick to a diet can tell you, knowing what you ought to do is the easy part. Getting all of humanity to adopt a carbon diet is the challenge of our time. If we’re lucky and make the right choices, we may still have time to redirect the human murmuration toward a sustainable economy.

Ivy Main is a lawyer, a longtime volunteer with the Sierra Club’s Virginia chapter, a former U.S. Environmental Protection Agency employee, and a regular contributor to the Virginia Mercury, which first published this commentary. Her opinions are her own and do not necessarily reflect those of any organization.

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