{"version":"1.0","type":"rich","title":"Keeling Curve","description":"This interactive visualization displays the Keeling Curve, charting monthly average atmospheric CO2 concentrations from NOAA’s Mauna Loa records since 1958. The primary line shows measured averages, with a secondary lighter line for interpolated values. Using d3’s scaleLinear, line, axisLeft, and axisBottom, the code maps decimal dates to x-coordinates and CO2 values to y-coordinates, rendering SVG paths with gridlines. It reveals both the seasonal oscillation and the long-term rising trend in atmospheric carbon dioxide.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/1df53216b12b4cfe9afb9d331f5aee94?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}