On normal days, the temperature decreases with altitude, allowing air pollutants to rise and disperse. During inversion episodes, a warmer air layer at higher altitude traps pollutants close to the ground. We show how readily available NASA satellite data on vertical temperature profiles can be...

We make an attempt to shed light on how Swedish environmental policy has evolved over the years in response to changing environmental problems as well as changing priorities. Our analysis covers the past, the present and, in a sense, the future. A central point we try to make is that the chosen...