Observing & Predicting

Natural variability can explain much of Earth's average temperature variation since the end of the last ice age, but over the past century, global average temperature has risen from near the coldest to the warmest levels in the past 11,300 years.

Saturday, September 1, 2012

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    In a place routinely afflicted by drought, water managers in Tampa Bay use climate forecasts to ensure a water supply to people’s taps without sucking the region’s rivers, wetlands, and groundwater dry. The limits of their innovation might be tested in a future which could pose even more challenges to ensuring the oasis remains green.

     

  • Deke Arndt of NOAA’s National Climatic Data Center reports that heavy rains from Hurricane Isaac in late August fell too late–and mostly in the wrong places–to provide much relief from U.S. drought.

  • A scorching July contributed to the third hottest summer on record for the contiguous United States. Most of the U.S. was also drier than average. Rains from Isaac did little to relieve drought.