Maps and graphs are important tools used in environmental science to visualize land cover, watersheds, river contours, and trends in carbon emissions and atmospheric carbon dioxide levels over time. Specific maps shown include land cover in the Shark River area of New Jersey, watersheds in Monmouth County, and a USGS contour map of the Shark River. One graph plots anthropogenic carbon emissions from 0-7 billion metric tons from 1900 to present against a scale on the left, and atmospheric carbon dioxide concentrations from 295-365 parts per million against a scale on the right, showing how both have increased over the twentieth century.
11. Anthropogenic carbon emissions [green circles; 0 - 7 billion
metric tons (Gton); scale to left] and atmospheric carbon
dioxide concentration [red squares; 295 - 365 parts per
million (ppm); scale to right] from 1900 to present