Forbes has decided to unpublish an article by award-winning climate activist Michael Shellenberger, in which he apologizes "for the climate scare we created over the last 30 years."

Schellenberger, a progressive, was named one of TIME's "Heroes of the Environment," while his book Break Through was heralded by WIRED as potentially "the best thing to happen to environmentalism since Rachel Carson's Silent Spring."

His book Apocalypse Never was widely praised as an 'eye-opening, fact-based approach' to climate science and 'engaging and well-researched.'

Now that he's apologized for three-decades of climate alarmism, Forbes has now blocked Shellenberger's article without explanation.

So, here it is:

Authored by Michael Shellenberger via Environmental Progress  (emphasis ours)

On Behalf Of Environmentalists, I Apologize For The Climate Scare

On behalf of environmentalists everywhere, I would like to formally apologize for the climate scare we created over the last 30 years. Climate change is happening. It's just not the end of the world. It's not even our most serious environmental problem. 

I may seem like a strange person to be saying all of this. I have been a climate activist for 20 years and an environmentalist for 30. 

But as an energy expert asked by Congress to provide objective expert testimony, and invited by the Intergovernmental Panel on Climate Change (IPCC) to serve as Expert Reviewer of its next Assessment Report, I feel an obligation to apologize for how badly we environmentalists have misled the public.