I'm a bit skeptical about this article. If you graph estimated species extinctions during the past 200 years instead of the estimated numbers of species for the

I'm a bit skeptical about this article. If you graph estimated species extinctions during the past 200 years instead of the estimated numbers of species for the past millions of years, then the current species extinction event does look troubling. So it depends a bit on the perspective and what numbers you choose. Of course, nature is robust. However, as we know from dead lakes, ecosystems have a tipping point. I would be especially worried about the oceans, because they seem to play an important role in earth's ecosystem as a whole. The connection to climate change in the article also seems a bit sensationalist. I always thought that the current species extinction has been caused by industrialization in general, not by global warming in particular, which is just one of many effects of world-wide industrialization.