Colorado launches first low-income rooftop solar power project

The Colorado Energy Office, Energy Resource Center, and Colorado Springs Utilities announce the installation of a 2kW rooftop solar power array as part of the state’s Weatherization Assistance Program. …read more

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Japan’s First Floating Solar System with Microinverters Installed on an Irrigation Reservoir

On a farming reservoir in Fukuoka City, Fukuoka prefecture, 1,200 photovoltaic (PV) modules cover the water surface to generate electricity and additional revenues for the city. Many floating solar systems have been developed in Japan, but this 300-kW system, which became operational this July, is a bit different. This is the nation’s first floating solar system equipped with microinverters. …read more

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China's Climate Leadership and the G20 Summit

Joanna Lewis

Climate change is the area in which China has shown perhaps the strongest international leadership. As China hosts the G20, we can expect energy and climate to be front and center.
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MPA-ESP Faculty Profile: A. Park Williams, Professor of Climatology

Dr. Park Williams, a bioclimatologist whose research focuses on the climatological causes and the ecological consequences of drought, teaches Climatology in the summer semester for the MPA in Environmental Science and Policy Program. ESP intern Alexandria J Nakao-Eligado interviewed Williams to learn more about his timely research. What triggered your interest in trees and climate change?… read more …read more

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IFC, Canadian Government Invest in Biomass Power for the Philippines

The International Finance Corporation (IFC), in cooperation with the Government of Canada and the Clean Technology Fund, will invest $161 million in three biomass power plants in the Philippines. …read more

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Mathematicians from the 18th Century

Instruments ready for Lagrangian array deployment at the end of the rainbow.

By Eric Lindstrom

Instruments ready for Lagrangian array deployment at the end of the rainbow.

What do Leonhard Euler (1707-1783) and Joseph-Louis Lagrange (1736-1813) have to do with SPURS-2? How do we have two experiments going on simultaneously honoring the work of these famous mathematicians?

Two frames of reference have taken their names from these 18th century mathematicians. In science, including oceanography, when we make measurements of fluid flows fixed in space, we watch properties such as temperature or salinity as currents carry them by our instruments. This is called an Eulerian frame of reference. However, sometimes we make measurements while following the flow, trying to tag a parcel of water and watch as it moves and changes over time. This water following perspective is called the Lagrangian frame of reference. For example if you watch a river flow past from the bank, you are using an Eulerian frame of reference. If you examine the river from a boat flowing with river, you would be making a Lagrangian observation of the river.

In SPURS-2 we use moorings and a fixed grid of stations to describe a patch of ocean as the water passes by. Moorings, stations, and satellites provide the Eulerian …read more

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Crystal Unclear: Why Might This Uncanny Crystal Change Laser Design?

Laser applications may benefit from crystal research by scientists at the National Institute of Standards and Technology (NIST) and Chinas Shandong University. They have discovered a potential way to sidestep longstanding difficulties … …read more

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