The term means nothing.
With due respect to Ingrate's scholarly response (which is both informative, and measured in its dismissal)...
Eco-fascism, along with eco-terrorism, is a bullshit phrase cooked up in furtherance of the on-going "green scare". If you like trees more than money, you have declared yourself an enemy of capitalism (and its sock-puppet, the State), and will thus be subjected to character assassination by the usual suspects.
If you observe the world around you, and react with your basic common-sense and sense of basic fairness, you will find yourself an anarchist in spite of yourself. Address individual issues like desertification, suburban sprawl, sealife poisoning, etc, etc, as symptoms of an underlying sickness (global corporate capitalism). The various single-purpose protest groups are just like the black hoodies we toss in the broken glass - useful to a point, but no further.
The first, only, and final arbiter of the value of anything is your own conscience (sorry, can't think of a better term here). If you have trouble with a part of some platform, then there is probably something wrong with it; so cut out the parts you find useful and call it something else.
"Take what you need, and compost the rest."
(my apologies if this response drifted a bit from the specific, i could copy most of it to every question.)