Picture of Pool 17 taken in 2009 along the Turure River after the mountain road had been widened. To get to the rocks along the far bank in 2005, one had to wade in waist-deep (about 3 feet) water. Now, one can simply walk across and only get wet shoes. The tripod in the photograph is only four inches on its side, half of which is above the water level. In 2005, the bottom of the stream was...

Publisher: EcoEd Digital Library

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A series of photographs showing the widening of a road that then caused an increase in the sediment load in the streams below the road. The photographs show the road and the surrounding tropical rainforest, an example of a stream with increased sediment load, and before and after photographs of pools along the stream (with and without reference points). As of 2012, the system still had an...

Publisher: EcoEd Digital Library

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Three maps showing the location of Trinidad and the location of the tributary and pools included in the folder Degradation of a Tropical Stream. Blue lines represent stream path taken from topographic maps. The black line shows the location of the road. The road continues to the north and crosses over the mountain to influence the head waters of the stream photographed in the tributary...

Publisher: EcoEd Digital Library

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This pair of Landsat images shows the rapid loss of the fabled glaciers and snowfields crowning Mt. Kilimanjaro between 1993 and 2000. With the snow and ice nearly gone, the volcano's crater is visible on the later image. The snowfields were first measured in 1912, and by 2009, 86% of that original extent was gone. Melting has become much more rapid in the last decade. While multiple factors...

Publisher: EcoEd Digital Library

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This pair of images illustrates the rise in sea surface temperature in the Florida Keys between June 11, 1985 and July 4, 2005. Most of the surface has warmed by one to two degrees Fahrenheit. Rising ocean temperatures due to climate change pose a tremendous threat to coral reefs and the marine life they shelter. Global water temperatures began a steady rise in the 1980s, accompanied by coral...

Publisher: EcoEd Digital Library

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