We're never quite going to get the climate change people are looking forward until we get some needed change in areas that people refuse to address.
Like, for example, a commitment from the toxic wonders of the late 20th century.
Any sort of climate change agreement that allows billion-member nations such as China and India to give a scant commitment to change without any viable and enforceable measures in place only amounts to the current conditions that we face regarding the global climate change debate - namely, a lot of blame on the Western world, a lot of guilt assumed by the Western nations for sins of the past, and a growing call for Western nations to pay for it economically.
Now, I'm not saying that many of these nations are without flaws. Granted, much of industrialization (and its impact on the planet) have some from these nations. At the same time, it is also from these nations (particularly their tax base and their native ingenuity) that a climate to address these situations comes regularly. Without the funding within the borders of these convenient global climate villains, we lose valuable opportunities to allow the best and brightest to chase down these solutions that will help us all.
Calling for rich nations to subsidize poorer nations for global climate care is misguided at best and guilt-driven and unethical at worst.