Weak Gravitational Lensing

In this presentation I review cosmological measurements with weak gravitational lensing using the cosmic shear technique. An intriguing tension in the parameter S8=sigma8*sqrt(Omega_m/0.3) between low-z large-scale-structure probes and the Planck primary CMB probes has been observed. This is reminiscent of the well-known H0 tension, albeit currently at lower significance, and the two might be connected. I present the most recent results from stage-III surveys measuring cosmic shear as well as combinations with galaxy clustering and galaxy-galaxy lensing, highlighting the importance of the calibration of photometric redshifts for the interpretation of these measurements.