Tony Morris
This is sobering research. No doubt in my mind (even prior to this) that humankind is destroying the planet at an alarming rate. A mere 200 odd years of "industrial humankind" has already undone much of the 3.6 billion years of evolution. (that is only 0.000006% of the "life on earth timeline)
Its a pity the messenger is Paul Ehrilch - his history will be the first thing the skeptics jump on.
Technically, by definition, the moment the 5th one ended, we entered the 6th one already.
Relax though, no matter how close or far off it may be, there's nothing we as a species are realistically able to accomplish to make any noticeable change to that date.
WWII was the worlds largest ever human initiated event, which made no more than a momentary 2% blip to our direction.
I'm sorry if I sound ignorant saying this but I take anything an environmental scientist says with a grain of sand.

I'll explain my reasoning; firstly their funds are directly reliant on how bleak their predictions are and secondly it's very hard to prove or disprove their predictions until years later and by that point it's irrelevant to them personally/career wise.

I'm not an expert or a scientist but I believe I have a fairly good understanding of the scientific method and they generally seem to eager to make assumptions/predictions on limited data.
The Hoff
I always ask the climate change deniers a simple question. How bad would it have to get before you believe we're in a serious situation. Maybe a major famine in in many countries and the U. S. ? Or maybe the sea level rising 10 feet? Many of them don't even think that would change their mind. I know we have the technology and the smarts to change it in time but we need leaders to lead and forget about being popular with the weak that will not listen to the scientists. Science is mostly just complicated math, and this is adding up in a hurry. What would it take for you to believe we have to do something now?
Jeffrey Melton
Do I have time to finish my beer?
I do so hope Homo Sapiens is on the list.
Brian M
Barring the obvious that doomsayers will eventually be right(!). The loss of species diversity is not evidence of any such mass extinction (just yet),
So what if the panda or the great predicators become extinct - it won't cause any environmental problems, maybe its even time for them to give way to a more suited successor in environmental terms.
As for the loss of bees this is not related to global warming and other insects are likely to adapt to take over there role if they don't recover. Given the life cycle of insects this could happen in a relatively short period.
However where we do need to take action on is the ever growing human population, deforestation etc..
Follow the money. No funding without Armageddon horrific apocalyptic "predictions", specially about devil-Mankind, fossil fuel (I agree fossil fules ARE devilish, but, alas...), climate change or better climate chaos. All models will fail, but, fortunately, no one or few of us will be there (in 2100 or even 2050). Fear, fear fear ang guide the People where you want !
S Michael
I hope these "scientist" publish their "work" in a language other than English, like maybe Chinese, Russian, and a whole host of other countries, because we are not the problem. The big polluters are not here in the U.S. Until you convince countries like China, India, Russian and a whole host of other countries to stop polluting its a lost cause. Go preach to them.
When all the trees have been cut down, when all the animals have been hunted, when all the waters are polluted, when all the air is unsafe to breathe, only then will you discover you cannot eat money.
Cree Prophecy