and this...
http://grist.org/cities/climate-change-is-making-private-heat-islands-for-people-of-color/
"...Translation: This study highlights the persistent racial segregation of urban areas more than it does a lack of trees. All told, this is just yet another amenity that people of color are losing out on. (Yes, trees are a luxury item!) [S]egregation is crucial to understanding social drivers of environmental health disparities and, more directly, the potentially disproportionate health burdens of climate change on communities of color, the study reads.
Its not just a potential discomfort, but a serious health risk, when extreme heat is a factor in about one in five deaths resulting from natural hazards. The authors ultimately recommend that urban planning to mitigate future extreme heat should proactively incorporate an environmental justice perspective and address racial/ethnic disparities in land cover characteristics.
So yeah, cool, more trees! But these neighborhoods dont just need a few new saplings on the block they need a more direct challenge to the residual effects of modern residential redlining. Ultimately any significant change for these private urban heat islands will require a combination of environmental justice and social justice..."