New study suggests climate is very sensitive to greenhouse gases
Despite ups and downs from year to year, global average surface temperature is rising. By the beginning of the 21st century, Earth’s temperature was roughly 0.5 degrees Celsius above the long-term (1951–1980) average. (NASA figure adapted from Goddard Institute for Space Studies).
Although the rate of global warming has increased dramatically in the last few decades, a new study suggests that human activities have been driving climate change for the past 180 years. The findings suggest that global warming is not just a 20th century phenomenon, and that the climate system is, indeed, quite sensitive to the buildup of heat-trapping pollution.
The study was led by Nerilie Abram, of The Australian National University, who warming began during the early stages of the Industrial Revolution and started leaving a fingerprint in the Arctic and tropical oceans around the 1830s…
I’m at the conference getting ready for the first session: Leading the way with direct potable reuse in Colorado. Panel with moderator Doug Kemper (Colorado Water Congress), Myron Nealey (Denver Water), John Rehring (Carollo Engineers).
CWC has an iPhone app up at the app store. Search for CWC and scroll down to CWC Summer Conference.
Nice bike ride up the Yampa River from my campsite west of town. The Sheraton Steamboat Springs lets you check your bike and park it in a room out of the elements.
By Christina Medved, Watershed Education Director and Heather Lewin, Watershed Action Director at Roaring Fork Conservancy in Basalt, CO.
Spring at Mt Sopris Colorado. The Roaring Fork River is in the foreground and located just outside Carbondale CO. Credit: Steve Wiggins
A rancher, a scientist, an angler and a conservationist walk into a room… “Wait a minute,” you say, “I’ve heard this one before! Something about water being for fighting, right? Remind me the punchline again?” Well, this isn’t the same old story with the same old punchline. Roaring Fork Conservancy (RFC), currently in its 20th year, is working with an empowered group of stakeholders to rewrite the story of water in the Roaring Fork Valley. The privilege of living with ready access to cold mountain streams, abundant trout, vibrant agriculture and spectacular scenery is one we do not take for granted which is why we continue to work…
The popular kayaking event runs on a stretch of the North Fork of the South Platte River from Bailey to Pine and has a national reputation for Class IV-V rapids.
“We are really excited in years where conditions align to help make BaileyFest a reality,” said Jeremy Allen, who works with Dave Bennett to coordinate the Roberts Tunnel flows as part of Denver Water’s Planning Division. “This…
I have noticed a lot of chatter lately about the situation at Lake Mead. Dramatic overuse, prolonged drought, and the effects of increased temperatures have led to a historically low volume of water stored in the largest reservoir on the Colorado River. One of the most critical components of water in the west is less than 40% full. Yet while some people scramble for a quick fix or point fingers, others see the long game and note the optimism that working together for smart, sustainable solutions can bring. There is hope, there is a roadmap, and together we have the knowledge, skill, and foresight to make it happen.
The Discovery Channel recently produced a new documentary, Killing the Colorado, a made-for-TV version of the lengthy ProPublica series of the same name. The show is excellent, comprehensive, and features a number of voices that you may not expect to be featured in a film about the environment. Imperial valley agricultural producers, water managers, a red-state Senator and a blue-state Governor – all identifying problems facing the basin, and most putting forth an optimistic view that a human-caused predicament can be solved with human-inspired ingenuity.
One quote in particular is poignant – there is a scene with Colorado Governor John Hickenlooper in his office flipping through a binder full of historic water compacts. Upon his observance of the generations of water agreements, he remarks “The thing you realize when you go through these [water] compacts, is that everyone is in this together.” Given the situation facing Lake Mead, a growing chorus of voices around Lake Powell, the birth of the Colorado Water Plan, and a recognition that heathy rivers support healthy agriculture and sustainable economies, we truly are all rowing the same boat together in the Colorado Basin.
But, how can Lake Mead affect Colorado from a thousand miles downstream? Well, due to the Colorado River Compact of 1922, headwaters states like Colorado must send a certain amount of water to the Southwestern states of Arizona, Nevada, and California – it’s the law of the river, and the law of the land. And since when the Compact was developed, California was a fast growing destination, it has priority and can “call” for water if needed. For years, California has had the luxury to get much of the surplus of water that Colorado and Wyoming have sent downstream to be stored in Lake Powell and Lake Mead. But now with prolonged drought, a fast-growing population across the entire Southwest, and a substantial agricultural economy (especially in the Imperial Valley), the era of surplus water is over. As such, Lake Mead is directly connected to Colorado, whether we like it or not, and that connection is the Colorado River.
Killing the Colorado does a fantastic job over nearly an hour-and-a-half of highlighting a variety of colorful characters who have recognized that shortage and a lack of water will change everything in the future – that future is now. But while both the show and the written article are excellent at highlighting the situation, they don’t delve deeply into what I think is most important – that real solutions do exist, and we know how to implement them, it simply takes our collective will to get them moving. Solutions like urban and agricultural conservation and efficiency, like reuse and recycling, like innovative water banking and flexible management practices, like continuing the shift towards renewable energy (solar and wind don’t devour cooling water like natural gas and coal plants require). But while these efforts all seem daunting and out of an individual’s control, there are actions that each of us can take every day that together, make a huge difference. Like buying and installing your own rain barrel for your outside plants and flowers, like supporting your local farmer at the farmer’s market – small things that have a great impact, especially when we all do them together.
Solutions do exist, and as Arizona Senator Jeff Flake said “The drought over the past couple of years has awakened all of us to the future we have if we don’t do better planning. There are many things that are out of our control…Planning is so important. Conserving. Recharging. Water banking. Water markets. These are all important things that have to take place.”