background
bank
bankrupt
building
business
capital
chemical
chimney
collapse
concept
contamination
credit
currency
depression
diesel
dioxide
ecology
economy
environment
environmental
exchange
factory
fall
finance
financial
fog
frost
fumes
gas
global
industrial
industry
investment
market
moscow
pollution
power
problem
production
quality of living
rouble
ruble
russia
russian
smog
smoke
steam
toxic
warming
wealth