Plans for geoengineering are often extravagantly high-tech, with giant space-based mirrors and artificial trees. But we might stabilise the climate just as well with a pile of chalk: rocks that suck carbon dioxide out of the air could be key in the fight against climate change.

China's recent cloud seeding effort has some researchers and international legal experts considering whether there should be more discussion now on extending existing international law and agreements (ex. the 1976 Environmental Modification Convention) to control the effects of unilateral geoengineering.

The author looks at the risks that geoengineering techniques being proposed to combat climate change could be weaponized. He argues that there are "[t]wo factors make this a danger we dismiss at our peril: the unequal impact of climate changes, and the ability of small states and even nonstate actors to attempt geoengineering."

The one-two hurricane punch from Katrina and Wilma along with predictions of more severe weather in the future has scientists pondering ways to save lives, protect property and possibly even control the weather. In fact, military officials and weather modification experts could be on the verge of joining forces to better gauge, react to, and possibly nullify future hostile forces churned out by Mother Nature.

The author surveys his team's research on the possibility of moderating or deflecting hurricanes through a variety of means, including using an array of space-based solar power satellites.

New research on weather modification is forcing scientists to take another look at the ethical and policy questions involved including its use as a weapon.

In 2025 US aerospace forces can "own the weather" by capitalizing on emerging technologies and focusing development of those technologies to warfighting applications. Such a capability offers the warfighter tools to shape the battlespace in ways never before possible. It provides opportunities to impact operations across the full spectrum of conflict and is pertinent to all possible futures. The purpose of this paper is to outline a strategy for the use of a future weather modification system to achieve military objectives rather than to provide a detailed technical road map.