Heal The World GeoArt
This series consists of 78 caches. 50% number searches with basic maths and 50% Jigsaw puzzles.
This series is 18 km or 11 miles long.
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This series is prodominatly out in the rural country side. You may notice there are larger gaps where you will pass residential housing. The suggested parking for this series is down by the Village Sign where there is space for multiple cars, including the space on the green there (N52° 4.812' E000° 16.469' ... CB21 4PH ...) . There will be a short walk from there to reach cache #1. Use the Mid-Waypoint to find the public footpath.
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Your Puzzle: Nutrient Pollution
Nutrient pollution, a form of water pollution, refers to contamination by excessive inputs of nutrients. It is a primary cause of eutrophication of surface waters, in which excess nutrients, usually nitrogen or phosphorus, stimulate algal growth. Sources of nutrient pollution include surface runoff from farm fields and pastures, discharges from septic tanks and feedlots, and emissions from combustion. Excess nutrients have been summarized as potentially leading to:
- Population effects: excess growth of algae (blooms);
- Community effects: species composition shifts (dominant taxa);
- Ecological effects: food web changes, light limitation;
- Biogeochemical effects: excess organic carbon (eutrophication); dissolved oxygen deficits (environmental hypoxia); toxin production;
- Human health effects: excess nitrate in drinking water (blue baby syndrome); disinfection by-products in drinking water;
- Biodiversity effects: excessive algae blooms (biodiversity loss).
History of nutrient policy in the United States
The basic requirements for states to develop nutrient criteria and standards were mandated in the ABCD Clean Water Act. Implementing this water quality program has been a major scientific, technical and resource-intensive challenge for both EPA and the states, and development is continuing well into the 21st century.
The cache can be found at: N52 03.C(C+A)(C-D) E000 18.(D+D)(B-A)(B-A)
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