One way to be climate-friendly: Shop sustainably. But figuring out which products count as “sustainable” can be hard, especially when buying online. This comprehensive guide will show you how to make climate-friendly online shopping choices.

As ordering with a computer or phone becomes more ubiquitous, the number of online products labeled sustainable is also increasing. Yet there is no single seal of approval across e-commerce platforms that verifies whether something is climate-friendly, partly because there are multiple ways to define sustainability.

Third-party nonprofit organizations study manufacturers and sellers' practices and offer certifications that are displayed online. Government programs such as the Agriculture Department's organic certification or Environmental Protection Agency's Energy Star efficiency standard are also often listed. Large e-commerce websites may highlight the certifications with special icons, hyperlinks to certification programs or written descriptions.

The mixture can invite homework from buyers. Elwyn Grainger-Jones, who leads a nonprofit that certifies product sustainability, said there also isn't a single clearinghouse that tracks which third-party certifications are the most credible.

“Therein lies an issue and a challenge,” said Grainger-Jones, CEO of Cradle to Cradle Products Innovation Institute. “What we haven’t seen so far is a third-third party step in and be the information portal on what a good certification is."

And while shopping online might come with more packaging, it doesn't always come with more emissions if you make climate-friendly online shopping choices. A person shopping online may even emit less than if they went to the store in person, according to a study published in Environmental Science and Technology. But there are a lot of variables, including which e-commerce site they use, the shipping speed they select and how close they live to a brick-and-mortar alternative.

There might not be one surefire way to tell sustainable products from unsustainable ones, but certification experts shared tips on what to look for. Many apply to in-person purchases, too, so you can keep them in mind for the supermarket or furniture store.

Read the full article about climate-friendly online shopping choices by Caleigh Wells at The Independent.