On the left, each single red or blue line shows projections from a single global climate model for one of two possible futures. Lines in shades of red are projections for higher emissions and lines in shades of blue are for lower emissions. On the right, the example from Climate Explorer uses single bands of red and blue shading to show the full range of model results for the same two possible futures.
In Climate Explorer graphs, the top of each color band represents the highest projection among all the models at each time step for each scenario; the bottom of the band represents the lowest projection. The dark median line within each band highlights the trend for each scenario, but it is not a prediction. Future observations are expected to vary across the full range of projections, just as observed values vary from the modeled history.