1. Projecting Bias with Map Projections

2. Traditional Mercator Projection

3. Mercator Projection Cylindrical map projection
Most accurate at the Equator
Most distortion exists at the Poles
North and South countries look much larger than countries near the Equator
So what is the problem?

4. Winkel Tripel

5. Winkel Tripel Projection
Developed in 1921 by Oswald Winkel ( )
Tripel - German term meaning a combination of three elements. Winkel choose the name Tripel because he had developed a compromise projection; it does not eliminate area, direction or distance distortions; rather, it tries to minimize the sum of all three.

6. Winkel Tripel Projection Continued
In 1998 the National Geographic Society announced that it was adopting the Winkel Tripel as its standard projection for maps of the entire world.
Why would National Geographic Society adopt this projection?

8. Hobo-Dyer Equal Area Projection

9. Hobo-Dyer Equal Area Projection
Why would this map projection be significant?