The aricle is right on target criticizing green advocates who insist nobody can be pure enough unless they give up everything and live naked in a hot spring, eating only algae.
Still, green journalism has a place. Industry advocates and lobbying groups tell us and our elected representatives coal mining is clean, nuclear power is safe, automobiles shouldn't be blamed for pollution, agricultural runoff doesn't pollute streams, etc, etc. They're out there with their mouthpieces, feeding TV and print stories to the media outlets, urging us to blame ourselves, someone else, anybody except the (insert industry name here) people who are just trying to make our lives better by allowing us to live more comfortably.
Just as you don't have to be a vegan to eat a healthier diet and have a lower impact on the planet, neither do you have to give up shelter and transportation to stop global warming. Driving a Matrix instead of a Hummer would do a lot. So would building a 2400 square foot house instead of a palace two or three times that size. It's really not necessary to live in a yurt and walk barefoot through the snow.
I think most people already know all this, but we're being tugged and pulled between the two extremes. The one thing to which I do object is the implication that we can't be pure enough to satisfy the purists, so why try? That makes no sense at all. If we followed that kind of advice, none of us would live past 20. It's too hard to obey the 55 mph speed limit, so why not go 110? Drink the whole bottle of tequila. Spend all your money at once. Exercize no self-control whatever, in any realm.
Perfect is the enemy of good enough. Don't listen to either of the extremist viewpoints. They're only interested in being right, not saving the planet. Green comes in many shades. Pale green is better than not green at all.