Saturday, May 19, 2012

Photo: How Little Water There Really Is On Earth

How Important Is Water?

Take a look at this photo to understand just how important water conservation really is.

"In this illustration, the sphere on the left represents Earth with all of the water removed. The blue sphere to the right shows the approximate volume of all of Earth's water. The tiny blue dot on the far right represents the available fresh water. Another way to think of it is that if we represented the size of Earth with a basketball, all the water on the planet would fit into a ping pong ball and the available fresh water would be smaller than a popcorn kernel. Despite being such a water-rich planet, drinking water is one of our most precious resources."

Drought Hits Spain's Wheat Crop

Droughts in Spain have become more severe and frequent over the last few years. I reported on a devastating drought that hit Spain in 2006 and another in 2008. This time however, it is even more severe due to lack of winter precipitation that is now affecting their wheat crop. Scientists have already predicted that the effects on agriculture due to the effects of drought brought on my anthropogenic global warming will gravely affect our ability to feed the world with a business as usual scenario.

Drought Hits Spain's Wheat Crop

"Spain has faced the driest winter ever recorded. It has raised red flags in Spain, where farmers face the threat of extreme drought. Grain crops in Spain are suffering after an unusually dry autumn and winter. The amount of rainfall has been just half of normal in key grain producing regions.

The map of the impact of the drought on plants throughout the country made with Normalized Vegetation Difference Index (NDVI) data from the Moderate Resolution Imaging Spectroradiometer(MODIS) instrument on the Terra satellite. It compares plant growth between April 6 and April 21, 2012, with average conditions for the same period. Brown indicates areas where plants are growing less vigorously than usual for this time of year. Gray indicates areas where data were not available. (NASA Earth Observatory image by Jesse Allen, using data provided by Inbal Reshef, Global Agricultural Monitoring Project. Caption by Adam Voiland.)

In an analysis released on May 10, 2012, the USDA Foreign Agricultural Service, projected Spain’s wheat production would drop by 20 percent, oats by 18 percent, and barley by 14 percent in comparison to last year. Overall, the USDA expects Spain will need to import 11 million metric tons of grain from other European countries because of the drought.

In late April, increasing rainfall has started to improve the situation, particularly in the northern half of the country. If rain continues to fall regularly throughout May, there’s a chance that barley and wheat yields could rebound.

A closer view of Andalucía, a region in southern Spain that produces almost all of the country’s durum wheat. Only about half the normal amount of rainfall fell in Andalucía between January and April. In the other key wheat producing states of Castilla y Leon, Castilla-La Mancha, and Aragón, rainfall has been low as well. (NASA Earth Observatory image by Jesse Allen, using data provided by Inbal Reshef, Global Agricultural Monitoring Project. Caption by Adam Voiland.)

Spain is not the only European country grappling with a weak wheat crop. Ukraine, Romania, Bulgaria, and other countries will likely see reduced yields as well due to dry weather. A cold spell at the end of February in Poland and Germany has also harmed crops. (EarthObservatory)"

More at the link

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