Case Study Overview Birds are among the world’s best ecological indicators. eBird allows volunteers anywhere in the world to submit data about the birds they see at any time and in any location. The millions of observations recorded each month, logged into a central database at the Cornell Lab of Ornithology, are building a global understanding of […]
Case Study Overview In 1997, following an evening of intense rainfall in parts of Fort Collins, Colorado, an ankle-deep creek running through Colorado State University became a raging river of mud and debris. The Spring Creek Flood left five people dead and city-wide damages of more than $200 million — all for lack of warning. […]
Case Study Overview Everyone knows that many flowers come out in spring and most leaves turn color in autumn. Even small children take delight in the seasonal cycles of plants. But the timing of seasonal cycles is changing. Scientists have observed earlier blooming and later leaf fall in many plant species due to global warming. […]
Case Study Overview With its familiar pattern of orange and black, the monarch is perhaps the best known butterfly in North America. Each year, adult monarchs migrate from winter roosts to summer grounds across North America. Along the way, female butterflies lay eggs on milkweed; the eggs then hatch into caterpillars, also known as larvae. […]
Case Study Overview Clouds are beautiful and familiar sights, but closer observation can yield many surprises due to their constantly changing forms. Clouds are of abiding interest to scientists from the National Aeronautics and Space Administration because they are so important in shaping the Earth’s climate. Citizens have long contributed to scientific studies of clouds. Since 1994, […]
Case Study Overview Did you know that the amount of water in soils, called “soil moisture,” can influence precipitation rates and even national security? Soil moisture plays an important role not only in agricultural productivity but also in drought and wildfires, floods and landslides, human health (through the expansion of disease) and even national security. […]