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Photo: Photofex_AUT (Shutterstock) If you’re traveling again and have any amount of anxiety over climate change, you might have considered whether to buy carbon offset credits to minimize the environmental impact of your flight. One study found that 8% of carbon emissions across the globe are generated by tourism—and approximately half of that comes from transportation. Air travel makes up a very small percentage of overall emissions compared to driving (and industry, obviously), but it’s not nothing . So is it worth it to purchase carbon offsets for your flight? What are carbon offsets? A carbon offset is a reduction in greenhouse gas emissions in one place that makes up for emissions created somewhere else. As a consumer, you can purchase offsets as credits that are invested in community projects that reduce emissions—reforestation, efficient cooking equipment, and wind power are a few examples. How much do carbon offsets cost? There isn’t one single rate for carbon offsets, as it depends on where you buy them from and what you are aiming to offset. First, let’s say that you’re flying round-trip—nonstop each way—from Los Angeles to New York with an approximate flight time around five hours per leg. According to Cool Effect’s offset calculator , the total carbon output for this trip would be 1.56 tonnes at a total cost of $19.03. (The cost per tonne is $12.20.) But some offsets are priced based on the project they support. Gold Standard, a carbon credit marketplace, lists rates ranging from $10 […]