The Economic Implications of an El Nino. NOAA.
NOAA's El Niño forecasts have become more reliable in recent years due to a new Operational Climate Forecast System. The system provides NOAA and the nation a longer lead-time for developing strategies to deal with expected impacts—including economic impacts. Some analysts estimate that nearly 25 percent of GDP, or $2.7 trillion, is either directly or indirectly impacted by weather and climate.