This Space Shuttle photo shows haze from China over the Pacific Ocean, on March 4, 1996, probably a mixture of air pollution, dust, and smoke. The corridor is 200 km wide and 600 km long. I found this image at an amazing (and FREE) on-line catalogue: “The Gateway to Astronaut Photography of Earth.” – Image Science and Analysis Laboratory, NASA-Johnson Space Center. It is searchable by subject, city and even with clickable world maps. It’s all part of research for the next video I’m working on, promoting sustainable investing, and featuring Canadian Astronaut Dr. Marc Garneau. Stay tuned