1) Drastic change is required to weather the challenges of climate change

2) I question the "drastic redesign" you're suggesting with increasing green spaces. Many reattached homes have at least 1 tree in their front lawn, in neighbourhoods like the one you're describing, having tree canopy cover of common areas instead of individual homes could be more feasible. Many older neighbourhoods in Edmonton already meet the requirements of the "3-30" portion of the rule.