What to Know About Buying Carbon Offsets
The purchases help consumers address climate change by seeking to ease the emissions impact.
3 min
Some consumers might feel eco-guilt about the takeout containers they have been throwing away or the additional packages they have been shipping from Amazon. Offsets are emerging as a way for people to mitigate the effects of shopping, shipping and travel.
There is no way to take back the carbon you have put in the air through activities such as driving your car or heating your house, and the surest way to reduce your carbon footprint is to drive, fly or buy less. Carbon offsets, created about 20 years ago, claim to provide a way for consumers and institutions to balance out their carbon footprint by investing in environmental projects that remove carbon-dioxide emissions from—or avoid adding them to—the atmosphere.
Offsets are easier than ever to buy online. The coming climate-change summit in Glasgow, called COP26, could put offsets on the radar of more consumers.
It is a tricky topic to navigate, though. The market for offsets isn’t regulated and the quality and authenticity of projects vary widely. It is difficult to know whether offsets purchased will actually make an impact on emissions, said Travis Miller, a stock analyst at Morningstar who specializes in energy and utilities.
Here is what to know about assessing and buying offsets now.
Who sells carbon offsets?
Carbon offsets are credits purchased from projects that are designed to reduce emissions of planet-warming greenhouse gases. These can include investing in a reforestation project in California or constructing cookstoves in Honduras, said Peter Miller, a director of climate and clean energy at the Natural Resources Defense Council.
Nonprofits are among the most reputable providers from which consumers may buy offsets, said Clint Henderson, senior news editor at The Points Guy travel website. Nonprofits such as Cool Effect and Carbonfund.org act as a bridge between people and the organizations that create and maintain carbon-reducing projects.
Offsets are measured and sold in metric tons of carbon-dioxide equivalent. One metric ton of carbon-dioxide equivalent is roughly equal to the size of a two-story house, said Dee Lawrence, co-founder of Cool Effect, which sells offsets to consumers.
Why do people buy carbon offsets?
Consumers can buy offsets to lessen carbon emissions for things as diverse as their vacation, the type of car they drive and the size of their house.
First, they can estimate the impact of their lifestyle—such as how much waste they dispose of, or how many loads of laundry they wash in hot water—by using an online calculator, such as the one from the Environmental Protection Agency or the Nature Conservancy. They could then buy offsets from a provider that sources emissions-reducing projects.
For example, if you fly 10,000 miles, you could buy offsets on Carbonfund.org for $20 to compensate for that flight’s emissions. The price of air-travel offsets is usually dependent on the length of the flight and the class of service, said Mr. Henderson at The Points Guy.
American Airlines gives fliers the option to buy offsets through a partnership with Cool Effect, such as when they purchase their tickets or after the flight. You can get an estimate of your air-travel emissions on Google Flights.
When an individual buys carbon offsets, that person’s money is typically pooled with others’, in a practice somewhat akin to crowdfunding. Together—by funding, say, a wind farm in rural Indiana—Mr. Miller at Morningstar said consumers can collectively reduce the amount of carbon going into the air.
How to know the value of an offset
Valuing offsets can be a bit “squishy,” said Mr. Henderson at The Points Guy. Consumers might never see the project firsthand, and they trust that the project they support is actually effective in reducing emissions.
To identify legitimate projects, look for those that clearly specify how emissions are reduced and reported, said Tensie Whelan, director of the Center for Sustainable Business at NYU Stern School of Business.
Generally, Prof. Whelan said, stay away from individuals selling offsets to their personal projects over social media or claiming to run an offset project that doesn’t have third-party oversight. Each metric ton of emissions consumers buy should have a unique serial number. That number helps ensure reductions aren’t resold and double counted, Prof. Whelan said.
Check that the project has permanence. For example, a project for fast-growing eucalyptus that will be cut down in 10 years would lack permanence. Also, make sure the project has independent third-party certification.
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An original watercolour illustration for the cover of Harry Potter and the Philosopher’s Stone, 1997 — the first book in J.K. Rowling’s hit series—could sell for US$600,000 at a Sotheby’s auction this summer.
The illustration is headlining a June 26 sale in New York that will also feature big-ticket items from the collection of the late Dr. Rodney P. Swantko, a surgeon and collector from Indiana, including manuscripts by poet Edgar Allan Poe and Arthur Conan Doyle, author of the Sherlock Holmes books
The Harry Potter illustration, which introduced the young wizard character to the world, is expected to sell for between US$400,000 to US$600,000, which would make it the highest-priced item ever sold related to the Harry Potter world. This is the second time the illustration has been sold, however—it was on the auction block at Sotheby’s in London in 2001, where it achieved £85,750 (US$107,316).
The artist of the illustration, Thomas Taylor, was 23 years old at the time and a graduate student working at a children’s bookshop. According to Sotheby’s, Taylor took a “professional commission from an unknown author to visualise a unique wizarding world,” Sotheby’s said in a news release. He depicted Harry Potter boarding the train to Hogwarts on platform9 ¾ platform, and the illustration became the “universal image” of the Harry Potter series, Sotheby’s said.
“It is exciting to see the painting that marks the very start of my career, decades later and as bright as ever! It takes me back to the experience of reading Harry Potter for the first time—one of the first people in the world to do so—and the process of creating what is now an iconic image,” Taylor said in the release.
Meanwhile, to commemorate the 175th anniversary of Edgar Allan Poe’s For Annie , 1849, Sotheby’s recently reunited the autographed manuscript of the poem with the author’s home, Poe Cottage, in the Bronx.
The cottage is where the author lived with his wife, Virginia, and mother-in-law, Maria Clemm, from 1846 until he died in 1849. The manuscript, also from the Swantko collection, will remain at the home until it is offered at auction at Sotheby’s on June 26 with an estimate between US$400,000 and US$600,000.
Matthew Borowick for Sotheby’s
Poe Cottage, preserved and overseen by the Bronx County Historical Society, is home to many of the author’s famous works, including Eureka , 1948, and Annabel Lee , 1927.
“To reunite the For Annie manuscript with the Poe Cottage nearly two centuries after it was first composed brought to life literary history for a truly special and unique occasion,” Richard Austin , Sotheby’s Global Head of Books & Manuscripts, said in a news release.
For Annie was one of Poe’s most important compositions, and was addressed to Nancy “Annie” L. Richmond, one of the several women Poe pursued after his wife Viriginia’s death from tuberculosis in 1847.
In a letter to Richmond herself, Poe proclaimed For Annie was his best work: “I think the lines For Annie much the best I have ever written.”
The poem was composed in 1849, only months before Poe’s death, Sotheby’s said in the piece, Poe highlights the romantic comfort he feels from a woman named Annie while simultaneously grappling with the darkness of death, with lines like “And the fever called ‘living’ is conquered at last.”
Matthew Borowick for Sotheby’s
In the margins of the manuscript are the original handwritten instructions by Nathaniel P. Willis, co-editor of the New York Home Journal, where Poe published other poems such as The Raven and submitted For Annie on April 20, 1849.
Willis added Poe’s name in the top right and instructions about printing and presenting the poem on the side. The poem was also published in the Boston Weekly that same month.
Another piece of literary history included in the Swantko sale could surpass US$1 million. Conan Doyle’s autographed manuscript of the Sherlock Holmes tale The Sign of Four , 1889, is estimated to achieve between US$800,000 and US$1.2 million.
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