Since the 1960s, when the concept was used for the first time, the notion of geoengineering has evolved considerably, and now covers a very wide spectrum of methods and technologies. But all aim at modifying the Earth's climate. For the purposes of this paper, geoengineering is defined as...

Since the 1960s, when the concept was used for the first time, the notion of geoengineering has evolved considerably, and now covers a very wide spectrum of methods and technologies. But all aim at modifying the Earth's climate. For the purposes of this paper, geoengineering is defined as...