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File:Plants that change color and mark buried explosives.jpg

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DANGER: Red marks the spot of a land mine.
In Autumn, the plant's normal reaction is to turn red or brown when subjected to stressful conditions such as cold or drought. This weed has been genetically modified to change colors only in the presence of nitrogen-dioxide, a marker for landmines or other unexploded ordinance. The plant is also made to be sterile. The application would be to release the seeds from a crop duster over a former battleground area, and let the plants grow, marking the threats. Initial tests will be in Bosnia, Sri Lanka and Sub-Saharan Africa.
The hope is that this will be more effective than the dogs and metal detectors used today.
“Experts believe that there are more than 1 billion unexploded landmines in over 75 countries worldwide, and it is estimated that a landmine kills or injures someone every 20 minutes, usually children or teenagers.” (source)
Date
Source

Autumnal Explosives

And in File:High School Biology 1-13.pdf, thale cress Arabidopsis thaliana p. 55[47].
Author Steve Jurvetson from Menlo Park, USA

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This image was originally posted to Flickr by jurvetson at https://www.flickr.com/photos/44124348109@N01/1537623. It was reviewed on 12 July 2010 by FlickreviewR and was confirmed to be licensed under the terms of the cc-by-2.0.

12 July 2010

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Date/TimeThumbnailDimensionsUserComment
current06:16, 12 July 2010Thumbnail for version as of 06:16, 12 July 20101,856 × 1,392 (1.52 MB)FlickreviewRReplacing image by its original image from Flickr
19:45, 11 July 2010Thumbnail for version as of 19:45, 11 July 2010500 × 375 (44 KB)Geo Swantry again
19:41, 11 July 2010Thumbnail for version as of 19:41, 11 July 20101,856 × 1,392 (219 KB)Geo Swan{{Information |Description=DANGER: Red marks the spot of a land mine. In Autumn, the plant's normal reaction is to turn red or brown when subjected to stressful conditions such as cold or drought. This weed has been genetically modified to change colors
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