Bummer: It turns out that nuclear conflict is undesirable, what with the resulting cooler temperatures, altered weather, shorting growing seasons and all

War-related Climate Change Would Substantially Reduce Crop Yields

MADISON –- Though worries about "nuclear winter" have faded since the end of the Cold War, existing stockpiles of nuclear weapons still hold the potential for devastating global impacts.

Researchers at the University of Wisconsin–Madison and Rutgers University have found that the climate effects of a hypothetical nuclear war between India and Pakistan would greatly reduce yields of staple crops, even in distant countries...

Robock used global climate models to calculate the climate impacts of a conflict between India and Pakistan, each using 50 nuclear weapons.

"This is essentially a climate change experiment, but instead of running a climate change model under a global CO2 scenario, you run it under a soot scenario, where the soot comes from fires from cities and industrial areas burning as a result of the war," explains Ozdogan, a UW–Madison professor of forest and wildlife ecology.

The soot and smoke can travel around the world in the atmosphere and block some of the sunlight that would normally reach the Earth. That leads to cooler temperatures, altered weather and precipitation patterns, and shorter growing seasons.

Nuclear winter - Wikipedia, the free encyclopedia

Nuclear winter is a hypothetical climatic effect of nuclear war. It is theorized that detonating large numbers of nuclear weapons has a profound and severe effect on the climate causing cold weather and reduced sunlight for a period of months or even years, especially over flammable targets such as cities, where large amounts of smoke and soot would be ejected into the Earth's stratosphere.