Geoengineering is a dangerous science
First of all, it has to be clear that geoengineering is mostly a war science and has no relationship with other sciences that try to help the environment. USA, Russia, Israel, and China, and maybe more countries master the technology and development to change weather and to cause geologic activities for a couple of military and secret operations, which are aimed to obtain more and more advantages to secondary sources such as demography, agriculture, and energy.
Therefore, war now has the technological foundation to provoke, reinforce or lead earthquakes, heavy storms cyclones, typhoons, and floods, including the use of aerosol and radioactive airborne transported through universal weather systems. The danger also becomes from the purpose of geoengineering that used from governments to get advantage from situations that are negative for the environment but positive only for the profits. For example the rise of the temperature of south and north poles used only to make the trips of the ships there easier and of course about resource extraction.