Natural Resource Conservation
Découvrez les initiatives de protection de l'environnement dans les parcs nationaux, avec des groupes travaillant sur les espèces envahissantes et la restauration des habitats.
Guy Sternberg on Saving a Historic Tree
13 mins • Mar 14, 2013
Charts
- 160Decreased by 39
'/%3e%3cpath%20d='M74.965,77.269%20C74.795,75.733%2074.283,74.624%2073.259,73.6%20C71.339,71.595%2067.968,70.272%2064,70.272%20C60.032,70.272%2056.661,71.552%2054.741,73.6%20C53.76,74.667%2053.205,75.733%2053.035,77.269%20C52.693,80.256%2052.907,82.816%2053.248,86.955%20C53.589,90.88%2054.229,96.128%2055.04,101.419%20C55.637,105.216%2056.107,107.264%2056.533,108.715%20C57.259,111.104%2059.861,113.152%2064,113.152%20C68.139,113.152%2070.784,111.061%2071.467,108.715%20C71.893,107.264%2072.363,105.216%2072.96,101.419%20C73.771,96.085%2074.411,90.88%2074.752,86.955%20C75.136,82.816%2075.307,80.256%2074.965,77.269%20z'%20fill='%23FFFFFF'%20id='XMLID_657_'/%3e%3cpath%20d='M74.496,55.509%20C74.496,61.312%2069.803,66.005%2064,66.005%20C58.197,66.005%2053.504,61.312%2053.504,55.509%20C53.504,49.707%2058.197,45.013%2064,45.013%20C69.803,45.013%2074.496,49.749%2074.496,55.509%20z'%20fill='%23FFFFFF'%20id='XMLID_655_'/%3e%3cpath%20d='M63.872,14.165%20C39.381,14.251%2019.328,34.133%2018.987,58.624%20C18.731,78.464%2031.403,95.445%2049.109,101.675%20C49.536,101.845%2049.963,101.461%2049.92,101.035%20C49.707,99.499%2049.451,97.963%2049.28,96.427%20C49.195,95.872%2048.853,95.445%2048.384,95.189%20C34.389,89.088%2024.619,75.051%2024.789,58.795%20C25.003,37.461%2042.411,20.096%2063.701,19.925%20C85.504,19.755%20103.296,37.419%20103.296,59.179%20C103.296,75.264%2093.568,89.088%2079.701,95.189%20C79.189,95.403%2078.848,95.872%2078.805,96.427%20C78.592,97.963%2078.379,99.499%2078.165,101.035%20C78.08,101.504%2078.549,101.845%2078.976,101.675%20C96.512,95.531%20109.099,78.805%20109.099,59.179%20C109.013,34.347%2088.747,14.123%2063.872,14.165%20z'%20fill='%23FFFFFF'%20id='XMLID_653_'/%3e%3cpath%20d='M62.848,29.099%20C46.891,29.696%2034.091,42.88%2033.877,58.837%20C33.749,69.333%2038.997,78.635%2047.061,84.139%20C47.445,84.395%2048,84.096%2048,83.627%20C47.872,81.792%2047.872,80.171%2047.957,78.464%20C48,77.909%2047.787,77.397%2047.36,77.013%20C42.453,72.405%2039.467,65.835%2039.637,58.581%20C39.979,45.781%2050.261,35.371%2063.061,34.859%20C76.971,34.304%2088.405,45.483%2088.405,59.221%20C88.405,66.219%2085.419,72.533%2080.683,77.013%20C80.299,77.397%2080.085,77.909%2080.085,78.464%20C80.171,80.128%2080.128,81.749%2080.043,83.584%20C80,84.053%2080.555,84.395%2080.981,84.096%20C88.917,78.677%2094.165,69.504%2094.165,59.179%20C94.208,42.197%2080,28.416%2062.848,29.099%20z'%20fill='%23FFFFFF'%20id='XMLID_651_'/%3e%3c/g%3e%3c/svg%3e)
Épisodes récents
Mar 14, 2013
Guy Sternberg on Saving a Historic Tree
13 mins
Mar 14, 2013
Lewis and Clark: Preserve These Fragile Lands
1 mins
Mar 14, 2013
Native American Perspectives
6 mins
Mar 14, 2013
Going-to-the-Sun Road: Lunch Creek
2 mins
Mar 14, 2013
Cape Sable Dam Project
10 mins
Langue
Anglais
Pays
États-Unis
Catégories
Site web
Flux
Demander une mise à jour
Les mises à jour peuvent prendre quelques minutes.