Spring is coming early in 3/4 of national parks, according to a new study. Awesome? Not so much. As flowers bloom earlier every year, it’s disrupting the link between the wildflowers and the arrival of birds, bees, and butterflies that feed on and pollinate the flowers. In Shenandoah, an earlier spring is giving invasive plants a head start, and they’re displacing native wildflowers, leading to costly management issues.
Before the 1960s almost everything about living openly as a lesbian, gay, bisexual, or transgender (LGBT) person was illegal. New York City laws against homosexual activities were particularly harsh. The Stonewall Uprising on June 28, 1969 is a milestone in the quest for LGBT civil rights and provided momentum for a movement.
Vine Creek Ranch at Death Valley National Park. Steady drought and record summer heat make Death Valley a land of extremes. Towering peaks are frosted with winter snow. Rare rainstorms bring vast fields of wildflowers. Lush oases harbor tiny fish and refuge for wildlife and humans. Despite its morbid name, a great diversity of life survives in Death Valley.
Located 2,600 miles southwest of Hawaii, the National Park of American Samoa is the most remote unit of the National Park System and the U.S. National Park south of the Equator. The Park spreads across three islands, 9,500 acres of tropical rainforest, and 4,000 acres of ocean, including coral reefs. While remote, the islands of American Samoa, true to the meaning of the word Samoa (Islands of Sacred Earth), are welcoming and offer beautiful landscapes and centuries of culture and history.
DOINews: NPS: Grand Canyon Fills with Sea of Clouds
A rare ground inversion last Thursday filled the Grand Canyon from rim to rim with a sea of clouds.
Clouds fill the Grand Canyon from rim to rim on Thursday, Dec. 11, 2014. Photo by Maci MacPherson, NPS.
Ground inversions at Grand Canyon are a sight to behold – clouds fill the canyon with sunny, blue skies above the rims. The topography of Grand Canyon enhances the effect of inversions, creating the dramatic views of a sea of fog and clouds seemingly dense enough to walk out on.
Ground inversions occur when cold air is trapped by a layer of warm air. On clear, cold nights ground temperatures cool rapidly. Air in contact with cold surfaces cools and sinks. At Grand Canyon cold, moist air drops into the canyon forming cascading “waterfalls” of clouds pouring down the rim filling the canyon. Warm air above the rim holds the clouds in place until enough solar radiation is received to warm the surface of the rocks, heating the cold, dense clouds in the canyon and causing them to rise.
Visitors at Grand Canyon during an inversion are challenged to be patient. Waiting out the warming process is well worth the effort; when the clouds start to lift the currents of air swirl and turn on themselves parting like curtains to reveal bursts of color and light, a breathtaking spectacle.