Just 11 months after the Paris climate talks, the resulting treaty has come into force. The rapid ratification looks set to heap even more pressure on Australia to come up with a credible climate policy.
India has pledged to ramp up renewable energy and make its economy more carbon-efficient. And while that will help cut emissions, the main motivation is to give power to the many who still lack access to electricity.
Australia's emissions target will inevitably be compared with other leading nations. But a fair target should be calculated not on a basis of comparison, but on the world's shared 2-degree climate goal.
Ahead of meetings at the end of this year in Paris, countries will submit draft contributions for a global climate deal. The goal: reducing greenhouse gases beyond 2020, and ultimately keeping global warming below 2C.