(1) Aerosol effects on convective storms in a warmer climate (2) Lagrangian analysis of two flavours of Central European heatwaves: formation under Omega blocking vs. initiation by subtropical ridges (3) Analysis and correction of MJO related errors in subseasonal ECMWF ensemble forecasts (4) High-Resolution Modeling of Outdoor Human Thermal Comfort in complex Urban Environments using a Multiscale Deep-Learning Approach