Oil prices hit a record high of $97 a barrel on Tuesday, but the next generation of consumers could look back on that price with envy. The dire predictions of a key report on international oil supplies released Wednesday suggest that oil prices could move irreversibly over the $100-a-barrel threshold in the not too distant future, as the global economy faces a serious energy shortage. This gloomy assessment comes from the International Energy Agency, the Paris-based organization representing the 26 rich, gas-guzzling member nations of the Organization for Economic Cooperation and Development (OECD). The agency is not known for alarmist warnings, and its World Energy Outlook is typically viewed by policy wonks as a solid indicator of global energy supplies. In a marked change from its traditionally bland, measured tones, the IEA' s 2007 report says governments need to make urgent, bold decisions on energy policy, or risk massive environmental and energy-supply crises within two decades—crises and shortages that could spark serious global conflicts.