We might have passed the tipping point already

At least in regard to the global warming effect on the ice caps:

A critical meltdown of ice sheets and severe sea level rise could be inevitable because of global warming, the world's scientists are preparing to warn their governments. New studies of Greenland and Antarctica have forced a UN expert panel to conclude there is a 50% chance that widespread ice sheet loss "may no longer be avoided" because of greenhouse gases in the atmosphere.

Such melting would raise sea levels by four to six metres, the scientists say. It would cause "major changes in coastline and inundation of low-lying areas" and require "costly and challenging" efforts to move millions of people and infrastructure from vulnerable areas. The previous official line, issued in 2001, was that the chance of such an event was "not well known, but probably very low".
[...]
Areas such as the Maldives would be swamped and low-lying countries such as the Netherlands and Bangladesh, as well as coastal cities including London, New York and Tokyo, would face critical flooding.
[...]
The new report is expected to say this means there is "a significant probability that some large-scale events (eg deglaciation of major ice sheets) may no longer be avoided due to historical greenhouse gas emissions and the inertia of the climate system". [...] The report's conclusion poses a conundrum for governments of how to address a problem that is inevitable but may not occur for hundreds or thousands of years. "That's for the policy makers to decide but it really is a very difficult question," the source said. "Those are moral questions and the answer you give will depend very much on which part of the world you live in."

Isn't it unbelievable that we don't take stronger action on this issue? We're all going to be affected, one way or another.

This is what's happening to our glaciers:

An iceberg melting in Kulusuk, Greenland.