Poverty, water scarcity, environmental destruction can all be solved with vigorous bureaucratic measures. Blues have a cheerier world view. Risks are small, nature is resilient, the planet is huge, humans are ingenious. All that's needed is for those overbearing reds to get out of the way and let entrepreneurs and new technologies take over. The future promises great abundance, unless we regulate everything to death.
Greens think the planet is more fragile than either reds or blues are willing to recognize.
They fear that heedless blues, left to their own devices, will run the human economy straight onto the environmental rocks and that the reds are too ponderous, too attached to their own power and privilege to act in time. Greens trust in ordinary people much more than the other two types do and assume that social changes, more equitable sharing, less consumptive lifestyles are possible and desirable. I assume you need no further introduction to any of these types. You hear from them all the time. Reds managing a red world experience a future much like the favored scenarios of the World Bank or the United Nations.