NASA climatologist Gary Jedlovec, a member of the Earth Science team in Marshall Space Flight Center’s Science and Technology Office, discusses the satellite technology and ground-based tools used to record and trend regional and global climate changes over the past century and to provide forecast models looking 100 years into the future. Jedlovec and his team, which partners with National Oceanic and Atmospheric Association researchers and their colleagues around the world, spoke to the Marshall “Green Team” -- environmental engineers and support personnel who help guide Marshall’s focus on safer, more cost-efficient energy use. The Green Team, led by Marshall Sustainability Engineer Donna Leach of the Environmental Engineering & Occupational Health Office, currently is preparing activities and outreach for Earth Day 2020, set for next April.