GENEVA — Scientific evidence documented in a series of articles presented by the World Health Organization this week highlights the harmful impact of climate change at key stages of the human life cycle. “These provide important scientific evidence on how the health of pregnant women, newborns, children, adolescents and older people is affected by air pollution and different climate hazards, including wildfires, flooding and extreme heat,” Anayda Portela, director of the WHO’s department of maternal, newborn, child and adolescent health and aging, said at a briefing Friday for journalists in Geneva. “This evidence is critically important, because it shows the leading health risks for each of these groups for these different climate events,” Portela said. She noted that the collection of articles published in the Journal of Global Health shows that…