Global Warming Potentials (GWP) are calculated as the ratio of the radiative forcing of one kilogramme of greenhouse gas emitted to the atmosphere to that from one kilogramme of carbon dioxide over a period of time (e.g. 100 years).

Hybrids in rush hour

This morning I slept too long after a late night yesterday and woke up with the knowledge that I will have to queue in the traffic jam. If I do not leave home at 6:30 in the morning, the likelihood of ending up in rush hour traffic jam is rather high, probably some 90%.