A few years ago tech giant Apple announced that it was using 100% renewable sources of energy such as solar and wind for many of its power needs, including its data centers, and that 87% of its global operations were run on “renewables.”

Now Apple says it that it is “globally powered by 100 percent renewable energy.”

As part of its commitment to combat climate change and create a healthier environment, Apple today announced its global facilities are powered with 100 percent clean energy. This achievement includes retail stores, offices, data centers and co-located facilities in 43 countries—including the United States, the United Kingdom, China and India.

It’s not true. As I explained in a 2016 Forbes column, Apple is cooking its energy books to sell us on the lie that it runs on solar and wind.

Apple, like nearly every other international technology company in the world, gets the overwhelming percentage of its power from cheap, plentiful, reliable coal and almost none from expensive, unreliable solar and wind.

Like any other large tech company, Apple requires a lot of energy for its operations–and this energy needs to be cheap and reliable. But today’s politically correct sources of energy, above all solar and wind, are neither reliable nor affordable. To call them “renewables” is a misnomer, because “renewables” advocates generally refuse to support the only cost-effective “renewable” option, large-scale hydroelectric power: building a dam, they say, is not sufficiently “green.” Solar and wind should be called “unreliables” because the intermittent nature of sunlight and wind have made them useless as scalable, reliable sources of energy that can meaningfully substitute for hydro, nuclear, let alone fossil fuel power. These unreliables require subsidies and government mandates to exist.

So how can Apple claim to be between 87-100% renewable yet actually be a coal-powered company?

By committing two types of energy accounting sleight-of-hand:

1. Paying off other companies and consumers to give Apple “green credits” for its coal electricity usage.
2. Concealing that the vast majority of computer energy use comes from coal-powered manufacturing and the coal-powered Internet.

You can read the whole thing here.

Unfortunately, Apple isn’t the only company dishonestly portraying itself as “100% renewable.” Everyone from Intel to LEGO to Whole Foods to Google is trying to ride the green bandwagon by lying about their energy usage. (One news story describing Apple’s recent announcement had to append this note: “Clarified that Apple, like Google, is not actually 100 percent powered by clean energy, but it uses the term to signal that it buys enough green energy to offset its global power consumption.”)

It is bad enough that these companies are making false claims to build up their image, but they are using their unearned status to promote policies that would deprive others—especially poorer Americans who can’t afford to live in San Francisco mansions—of energy. That is shameful.

Tim Cook and the other “100% renewable” CEOs owe the public—including members of the fossil fuel industry—an apology. They should tell the truth about their energy usage, and thank the men and women who provide the reliable energy that allows them to flourish.

This article is republished with permission from our friend Dr. Rich Swier.