OMG the perfect liberal conundrum. Global warming AND inequality, all rolled into one study.
Global warming means longer growing seasons and more land that can be farmed. Thus, more food and lower food prices.
Good for the poor.
News flash - poor people ALWAYS end up giving money to rich people. That is why there are so few rich people and so many poor people.
There are a couple of economic strategies that can sort of balance out this inequity. One is to take the money away from EVERYBODY, but eventually, this ends up with actual contraction of wealth, and with this contraction, the general health of the population lags, leading to smaller families due to infant deaths and high fatalities among pre-adolescent children, and earlier deaths among those who do reach adulthood. Life becomes solitary, poor, nasty, brutish and short.
The other is to award incentives to anyone who will show effort and initiative, and allow them to keep the proceeds of their labor and entrepreneurial efforts. The ratio of well-to-do individuals under this strategy ends up much larger, and while not extremely rich, there is an escape from the very poor, and much less of the wealth is concentrated in the very few at the top.