In 1955 at the governments Nevada test site, a rising fireball dwarfs a crew of atomic cameramen. On the right are rocket plumes, which scientists studied as a way to gauge the progress of shock waves through the atmosphere.Small Nuclear War Could Reverse Global Warming For Years -- National Geographic
Regional war could spark "unprecedented climate change," experts predict.
Even a regional nuclear war could spark "unprecedented" global cooling and reduce rainfall for years, according to U.S. government computer models.
Widespread famine and disease would likely follow, experts speculate.
During the Cold War a nuclear exchange between superpowers—such as the one feared for years between the United States and the former Soviet Union—was predicted to cause a "nuclear winter."
In that scenario hundreds of nuclear explosions spark huge fires, whose smoke, dust, and ash blot out the sun for weeks amid a backdrop of dangerous radiation levels. Much of humanity eventually dies of starvation and disease.
Read more ....
My Comment: What global warming? I live in Canada and it has been getting colder .... and colder .... and even more colder every year. I guess I am living in the wrong part of the world.
But as to the question .... "will the fires and devastation from a limited nuclear exchange impact world climate systems" .... the answer is "probably". Fortunately the earth is very resilient, and it will bounce back very quickly.