Increasing Greenhouse Gases Lead to Dramatic Thinning of the Upper Atmosphere

The highest layers of the Earth

The study utilized orbital tracking data on 27 space objects that have been aloft for over 30 years and whose closest approach to the Earth ranges from 200-800 km (124-497 mi). The Space Shuttle typically orbits at 300-450 km (186-279 mi), and the International Space Station is at an altitude of about 400 km (248 mi). Although the atmosphere is extremely thin in this region (the air at the Earth