Scientists are reporting that the hole in the ozone layer will take about 15 years longer to heal than originally projected, with full recovery expected in 2065.

The eventual recovery is good news for both the planet and the our political will as we move forward towards addressing global warming. It demonstrates the ability of international agreements to overcome global environmental catastrophe's, and the power of our combined will to make the environment a core concern in our shared society.

The delayed recovery also shows the fragility of the planet, and the uncertain time frames for its recovery from abuse at human hands - an important warning to politicians stalling on taking immediate action on climate change.