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Native Americans eye huge South Dakota wind energy project

A map from the National Renewable Energy Laboratory shows areas with the potential for windpower and the associated transmission grid.

A map from the National Renewable Energy Laboratory shows areas with the potential for windpower and the associated transmission grid.

Sioux Nation wants to focus on renewable energy, not dirty tar sands oil

Staff Report

FRISCO — Just a few days after responding angrily to the U.S. House vote to approve the Keystone XL Pipeline, Sioux Nation Native American leaders met with the Obama administration to explore renewable energy options.

The meeting included representatives from more than eight federal agencies and offices, including representatives from the Departments of Agriculture, Interior, Treasury, and Tribal Relations. Continue reading

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Environment: South Dakota Native Americans describe House vote on Keystone XL pipeline as an ‘act of war’

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War over the Keystone XL pipeline?

‘We are a sovereign nation and we are not being treated as such … We will close our reservation borders to Keystone XL’

By Summit Voice

FRISCO — Conservation groups and climate activists aren’t the only ones hopping mad about the Congressional rush to approve the Keystone XL pipeline. Native Americans in South Dakota say they consider last week’s House vote to approve the pipeline “an act of war.”

The proposed project, aimed at pumping tar sands crude oil from Canada to U.S. refineries, would completely cross South Dakota. Environmentalists oppose the pipeline because it represents continued reliance on fossil fuels. Most, if not all, of the oil would be exported to other countries, so the argument that it would somehow lower fuel prices rings hollow and false. Continue reading

Why do bats fly into wind turbines?

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Close observation of bat behavior around wind turbines may help reduce bat deaths.

Study results may aid bat conservation

Staff Report

FRISCO — Scientists say they may be a step closer to being able to reduce widespread bat mortality associated with the development of wind energy.

Based on months of nighttime video surveillance, U.S. Geological Society researchers say some species of the flying mammals may be mistaking the wind turbines for trees. The tree-roosting bats may be confusing the turbines for trees, according to USGS scientist Paul Cryan.

“If we can understand why bats approach wind turbines, we may be able to turn them away,” Cryan said. “Advances in technology helped us overcome the difficulties of watching small bats flying in the dark around the 40-story heights of wind turbines. The new behaviors we saw are useful clues in the quest to know how bats perceive wind turbines and why they approach them.”  Continue reading

Study: Natural gas boom won’t slow global warming

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Increase in global gas production likely to displace renewable low carbon energy

Staff Report

FRISCO — Increasing production of natural gas won’t save the world from global warming, researchers said this week.

In the long run, a global abundance of inexpensive natural gas is likely to displace not just coal, but  also lower-emitting nuclear and renewable energy technologies such as wind and solar. Inexpensive natural gas would also accelerate economic growth and expand overall energy use, the study found.

“The effect is that abundant natural gas alone will do little to slow climate change,” said lead author Haewon McJeon, an economist at the Department of Energy’s Pacific Northwest National Laboratory. “Global deployment of advanced natural gas production technology could double or triple the global natural gas production by 2050, but greenhouse gas emissions will continue to grow in the absence of climate policies that promote lower carbon energy sources.” Continue reading

Satellites see Four Corners methane ‘hotspot’

‘From space, there are no hiding places …’

The Four Corners area (red) is the major U.S. hot spot for methane emissions in this map showing how much emissions varied from average background concentrations from 2003-2009 (dark colors are lower than average; lighter colors are higher). Image Credit:  NASA/JPL-Caltech/University of Michigan.

The Four Corners area (red) is the major U.S. hot spot for methane emissions in this map showing how much emissions varied from average background concentrations from 2003-2009 (dark colors are lower than average; lighter colors are higher).
Image Credit: NASA/JPL-Caltech/University of Michigan.

Staff Report

FRISCO — The Four Corners region is a methane hotspot, producing the largest concentration of the heat-trapping greenhouse gas methane seen over the United States. Atmospheric concentrations of the gas are more than three times the standard ground-based estimate, according to a new study of satellite data by scientists at NASA and the University of Michigan. Continue reading

USGS study links fracking wastewater injection with surge in Raton Basin earthquakes

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U.S. Geological Survey researchers have linked a surge in earthquakes in southern Colorado and northern New Mexico with injection of fracking wastewater.

Scientists say it’s almost certain that massive injections of waste water caused recent quakes in the Raton Basin, including a 5.3 tremor in 2011

Staff Report

FRISCO — A surge in earthquakes in southern Colorado and New Mexico has almost certainly been caused by the injection of fracking wastewater deep into the ground, U.S. Geological Survey scientists reported last week.

The study details several lines of evidence directly linking the injection wells to the seismicity. The timing and location of the quakes is clearly linked with the  the documented pattern of injected wastewater.

Detailed investigations of two seismic sequences (2001 and 2011) places them in proximity to high-volume, high-injection-rate wells, and both sequences occurred after a nearby increase in the rate of injection. A comparison between seismicity and wastewater injection in Colorado and New Mexico reveals similar patterns, suggesting seismicity is initiated shortly after an increase in injection rates.

For example, two injection wells near the epicenter of a 2011 5.3 earthquake had about 5 million cubic meters of wastewater injected just before the quake — more than seven times the amount injected at the Rocky Mountain Arsenal well that caused damaging earthquakes near Denver, Colorado, in the 1960s. The August 2011 M 5.3 event is the second-largest earthquake to date for which there is clear evidence that the earthquake sequence was induced by fluid injection.

Continue reading

CU-led study urges grassroots approach to CO2 cuts

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Study says state plans are key to cutting concentrations of atmospheric heat-trapping pollution.

State energy policies key to reaching EPA greenhouse gas targets

Staff Report

FRISCO — State energy policies could be crucial to achieving the deep cuts in greenhouse gas emissions needed to prevent runaway global warming. Mandatory emissions caps and indirect steps like encouraging production of renewable energy can be equally effective, according to a new study led by the University of Colorado, Boulder.

State policies are important because the EPA’s Clean Power Plan gives states a key role in reaching overall national goals. The plan would require each state to cut CO2 pollution from power plants by 30 percent from their 2005 levels by 2030.

“In addition to suggesting that the EPA’s Clean Power Plan can work, our results have important implications for the U.N. Climate Summit,” said Professor Don Grant, chair of the CU-Boulder sociology department and lead author of the study. “They indicate that while the world’s nations have struggled to agree on how to reduce emissions, sub-national governments have been developing several effective mitigation measures. Leaders at the United Nations, therefore, would be wise to shift from a top-down strategy that focuses on forging international treaties to a more bottom-up approach that builds upon established policy successes.”

The study was published online this week in Nature Climate Change. The study was co-authored by Kelly Bergstrand of the University of Arizona and Katrina Running of Idaho State University, and was funded by the National Science Foundation.

Researchers had previously found it difficult to determine which state policies, if any, reduced power plants’ CO2 emissions because plant-specific data were largely unavailable, Grant said. That changed when the EPA began requiring plants to submit CO2 pollution information as part of its Greenhouse Gas Reporting Program.

Some states have policies that directly limit power plants’ carbon emissions and others have addressed carbon emissions indirectly by encouraging energy efficiency and renewable energy.

The study used 2005 and 2010 data to examine the impacts of strategies that are explicitly climate-focused such as carbon emission caps, greenhouse gas reduction goals, climate action plans (comprehensive strategies for reducing a state’s carbon emissions) and greenhouse gas registry/reporting system that require plants to register and record their emissions and emissions reductions.

Likewise, the researchers examined indirect policies with climate implications such as efficiency targets, renewable portfolio standards that require utilities to deliver a certain amount of electricity from renewable or alternative energy sources, public benefit funds that provide financial assistance for energy efficiency and renewable energy, and “electric decoupling” that eases the pressure on utilities to sell as much energy as possible by eliminating the relationship between revenues and sales volume.

The study found that emission caps, greenhouse gas targets, efficiency targets, public benefit funds and electric decoupling were the most effective policies for reducing power plants’ carbon emissions.

 

 

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