'Nuclear winter' coming? Nuclear war between US and Russia would cause catastrophic event, study confirms

Earlier this month, the U.S. pulled out of a Reagan-era nuclear treaty with Russia after the Trump administration assessed the country was in “material breach of the treaty” and made no effort to “come back into compliance.” If there were any kind of escalation between the two countries that would result in a nuclear war, it would almost certainly end in a nuclear winter, according to a new study.