Some of the warming or cooling we see has a known cause. If we would be able “to subtract” those know externally caused effects, we would get a clearer idea of the extent of the global warming caused CO2, etc. That is the analysis done by Grant Foster and Stefan Rahmstorf in a 2011 paper called “Global temperature […]
Inkomensongelijkheid
Naar aanleiding van het rapport van de WRR laat ik een paar grafieken zien die ik een aantal maanden geleden maakte. We kijken naar het verloop van de inkomensgroepen (decielen) vanaf 1960. De ongelijkheid is duidelijk het kleinste in 1983, tijdens het kabinet Van Agt – Wiegel. Het betreft het effect van maatregelen die door […]
Moving polygons
Take a polygon on N points and take the middle of every edge. Connect these points and we have a new polygon. Repeat the process ad infinitum. They get smaller and smaller, but if you rescale them then you get a nice movie of points that slowly move towards the shape of an ellips. See […]
Global Warming Has Not Stalled
Almost all comments in the press about the IPCC reports start with the remark that global warming has stalled since 2000 (or 1998 … anyway, the last 10, 15 or 20 years). Last year’s IPCC report even mentions this itself. It is the favourite topic of contrarians on the internet. But is it true? The […]