In response to Frumkin and Watts’ (2018) observation of the trilateral advance of the Lancet Countdown, Planetary Health, and the Pontifical Academy of Sciences, there is much to be hopeful for and yet to be very mindful of. Note that The Lancet Commissions have changed their tone significantly from the 2009 opening statement ‘Climate change is the biggest global health threat of the 21st century’ (Costello et al 2009: 1693) to the more positive position of ‘tackling climate change could be the greatest global health opportunity of the 21st century’ (Watts et al 2015:1861). It appears that the Lancet Countdown started with the threats and then opportunities in a SWOT (Strengths Weakness Opportunities Threats) analysis of climate change and health; as such, the strengths and weaknesses are also valid areas for consideration. The authors of the 2015 Lancet Commissionon climate change are to be commended for shifting the focus to one that enables individuals and groups to think and act...