Plateau-Wide Issues
What Can You Do?
Support clean energy development on the Colorado Plateau.
Share this page
 |
Climate change and its effects on water supplies
Studies suggest an increase in winter rainfall for the Colorado Plateau over the next century. Although this could elevate water supplies, any benefits could also be offset — partially or entirely — by increased evaporative loss in water delivery systems and rising demand from a growing population. Average snowpack in the Colorado River basin may decrease by 30 percent by the middle of the next century. Runoff will peak earlier (by more than a month earlier). In addition, heavy winter rains may cause flooding, accelerate soil erosion, and pose greater risks to property and life.
Effects on natural ecosystems
Changes in temperature, water availability, and atmospheric CO2 could significantly alter Plateau ecosystems, from the ponderosa forests to the Colorado River. Human development has already inhibited the ability of natural ecosystems to adapt; we have fragmented habitats, introduced invasive species like tamarisk and cheatgrass, and created migration barriers like Glen Canyon Dam. Some species will be able to migrate to higher elevations in the mountains. Depending on the pace and degree of climatic changes, alpine ecosystems could disappear from the region. More frequent El Nino events are likely to increase vegetation growth that could fuel forest fires in drier years.
Your donations and membership dues make our work on the Colorado Plateau possible.
