Pam Knox

  • Improving drought resistance in plants

    The Christian Science Monitor published a story earlier this month that describes the efforts of some scientists to improve drought resistance in plants by changing their ability to regulate water use.  The hope is that by changing the way plants respond to moisture stress, they may be able to alter their behavior when water is limited…

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  • Why is climate so difficult to predict?

    Climate is a difficult thing to predict because of the number of different factors that have to be taken into account.  The WhyFiles blog has a recent detailed article which describes some of the things that climate scientists have to think about when making projections of climate in the future.  This posting includes several paragraphs discussing…

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  • Farm workers know the importance of keeping abreast of severe weather.  If you are outside, you are more vulnerable to the perils of lightning, floods, and dangerous winds and tornadoes.  A new study published this week and described here in LiveScience discusses changes in the spring tornado season (March-May) that we may see if the…

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  • Today is a 50th anniversary that few people remember.  It was 50 years ago today that President Lyndon Johnson gave a special address to Congress warning about the environmental risks of excessive carbon dioxide from fossil fuels.  It is believed that this is the first time that a US President mentioned the risks of excess…

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  • Another mostly dry and cool week coming

    The outlook for the next two weeks is looking mostly cool and drier than average, although there will be some rain and a few warm days.  For the next week, most of the Southeast should see one shot of rain on Monday with totals of less than half an inch, followed by several dry days…

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  • The drought situation in California continues to be a concern to farmers across the US because of its impacts on fruit and vegetable markets as well as dairy.  In spite of hopes for a recovery this year due to El Nino and heavier than normal rainfall in December,  since then rainfall in California has been…

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  • What is an “atmospheric river”?

    In the last few years meteorologists have become increasingly aware that some of the most intense rainstorms on the West Coast are caused by concentrated bands of moisture that pour water vapor into the region.  These bands are called “atmospheric rivers” because they act like a conduit to bring high volume rain events to California,…

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