Individual Engagement in Health and Climate Change

This figure presents engagement with health and climate change on the English Wikipedia from 2019 to 2025, the span the indicator’s authors analyse (a 2018 year is supplied and not shown): page views of the articles "Effects of climate change" and "Effects of climate change on human health", page views across all selected climate change and health articles, and co-views between health and climate articles. One measure is shown at a time, as a line or bar chart, because the article collections attract many thousand times more views than the co-views. The Show control can instead present both co-view directions together — clicks from climate-related to health-related articles and from health-related to climate-related articles — which add up exactly to the supplied co-view total, so they may be stacked, and the total line is the supplied figure rather than a sum of whatever is on screen. The data is global only, so there is no country or regional selection.

This chart shows worldwide Google searches for "climate change health" each year from 2014 to 2025, combining the English, Spanish and French terms. Values are a Google Trends index rather than a count of searches: Google scales the series so that 100 marks the time of greatest search interest, so the line reads as relative interest over time. The data is global only, so there is no country or regional selection — the indicator’s country and regional values are a separately scaled index and appear in the next figure rather than on this axis.

This figure shows where Google searches for "climate change health" were concentrated across 2014 to 2025, as a single supplied value per place covering the whole period. It opens on a world map of the supplied countries and territories; 172 are supplied, and the map draws every one it can place (see the note on Kosovo below). The ranking compares one geographical level at a time — countries, HDI groups, WHO regions or Lancet Countdown regions — using the values the authors supply for each level: group values are supplied directly and are never sums of their member countries. Values are a Google Trends index scaled across places, with 100 the place of greatest search interest relative to its total search volume. This figure and the trend above cannot be combined into one: Google scales each index separately, so 100 means the year of greatest interest in one and the place of greatest interest in the other, and a value on one axis is not comparable with a value on the other.