Life and Environments Through Time (LET)

The Life and Environments Through Time (LET) program supports research that advances knowledge about the patterns and processes relating to the origin and evolution of Earth's climate, environments, life, and sedimentary record. This research takes place at the molecular, local, regional, and global scales from the Archean Eon through the Holocene epoch. LET-supported research can be useful for predicting and planning for future global change, and for the maintenance and security of ecosystem services and human societies. Some key aspects of this opportunity include: • The program supports research in various fields, including geosciences and environmental sciences. • The research can be conducted at different scales, from molecular to global. • The program aims to advance knowledge about the origin and evolution of Earth's climate, environments, life, and sedimentary record. • The research can be useful for predicting and planning for future global change.