Mikhail Gorbachev major campaign to limit alcohol consumption, which Gorbachev—who believed it would improve health and work efficiency—oversaw. His wife keenly supported the measure. As a result, crime rates fell and life expectancy grew slightly between 1986 and 1987. The reform had significant costs to the Soviet economy, resulting in losses of up to $100 billion between 1985 and 1990. Gorbachev later considered the campaign to have been an error. In April 1986 the Chernobyl disaster occurred; in the immediate aftermath, officials fed Gorbachev incorrect information to downplay the incident. As the scale of the disaster became apparent, 336,000 people were evacuated
Mikhail Gorbachev to his efforts for reform. Meanwhile, Gorbachev was losing further ground to nationalists. October 1990 saw the founding of DemRossiya, the Russian pro-reform coalition; a few days later, both Ukraine and Russia declared their laws completely sovereign over Soviet laws. The 'war of laws' had become an open battle, with the Supreme Soviet refusing to recognise the actions of the two republics. Gorbachev would publish the draft of a new union treaty in November, which envisioned a continued union called the Union of Sovereign Soviet Republics, but, going into 1991, Gorbachev's actions were steadily overpowered by secessionism. January and February