Answer:
Of the four Representative Concentration Pathway (RCP) scenarios you provided, RCP2.6 would be the most favorable for a healthy climate future for our grandchildren. RCP2.6 represents a low greenhouse gas emissions scenario, where the concentration of carbon dioxide (CO2) in the atmosphere is stabilized at around 450 parts per million (ppm) by the year 2100. This scenario assumes significant efforts to mitigate climate change through the widespread adoption of renewable energy, energy efficiency measures, and sustainable practices.