Contaldi, Carlo2015-01-212015-01-212015-01https://hdl.handle.net/11299/169543I will review the main characteristics of foreground polarization models that have been used to constrain dust and synchrotron polarized emission on large scales (l<100) where primordial B-modes are thought to dominate. These scales are being targeted by experiments such as BICEP/KECK and Spider.enFTPICMBPresentation