I have long thought that this is the right time to use government money to get a big push on climate change technology development and adoption. In a new paper, Nicholas Stern and his co-authors agree. They want a broad set of investments totalling some $400 billion. In the olden days, he’d be dreaming with that proposal but today things have changed. There is a message here for Australia too. We need more than just insulation, etc. Time for us to coordinate what big projects we are going to take on in negotiation with the rest of the world.