This interactive globe displays country boundaries from the World Atlas TopoJSON dataset, rendered as SVG paths via `d3.geoPath` with an orthographic projection. Users can drag to rotate the globe, which adjusts the projection’s rotation, and scroll to zoom via `d3.zoom`. Clicking a country switches between the orthographic, Mercator, and Albers USA projections, with a transition applied through `transition().duration()`. A graticule layer is also drawn, and country names are loaded from a TSV file to trigger projection changes.