Aerosol Climate InteractionsHow changes in aerosol can impact our climateFTIR SpectroscopyHow FTIR is used to identify functional groupsMolecular DynamicsHow molecular dynamic simulations illuminate microphysical processesSTXM-NEXAFSHow STXM-NEXAFS provides insight into organic aerosolsParticle Formation & GrowthHow particle formation and growth affects the Earth's radiation budgetParticle Size DistributionsHow particle size distributions help constrain microphysical events