https://www.sciencedaily.com/releases/2021/02/210222082634.htm

"There are many regional pathways to a more sustainable future, but our lack of understanding about how these complex and sometimes contradictory pathways interact (and in particular when they synergize or compete with one another) limits our ability to choose the 'best' ones," says Elena Bennett, a professor in the Department of Natural Resource Sciences at McGill University and the lead author on the paper."For this reason, we suggest that the global community needs to envision a diversity of desirable futures, nurture small seeds of sustainability, and work together to navigate the emerging pathways to sustainability."

Four different ways that local changes combine to result in global outcomes: aggregation, compensation, learning, and contagion