Cleantech news as it happens — check back for regular updates:

• A robot submarine built by the UK’s National Oceanography Centre has just completed a six-mission campaign to search for signs of melting below an Antarctic glacier;
• APX Inc. has launched a greenhouse gas transactions registry for the Voluntary Carbon Standard Association;
• Logistics Unlimited today announced it has joined the US Environmental Protection Agency’s SmartWay^SM Transport Partnership for energy efficiency and emissions reductions;
• Scientists warn the planet’s natural carbon sinks can’t absorb carbon dioxide fast enough to keep up with rising emissions;
• The health guidelines for eating fish might not be environmentally sustainable, according to a recent paper by Canadian physicians;
• AT&T and SmartSynch are offering a new suite of service plans for North American utilities seeking to provide customers with smart grid technology;
• Spectra Watermakers has delivered two of its solar-powered water filtration units to the US Army in Afghanistan;
• EU member states are backing proposed rules to regulate the electricity consumption of industrial motors;
• Greenleaf Biofuels has signed a $1.3 million (US) grant agreement with the state of Connecticut enabling the firm to build an alternative feedstock biodiesel production facility in New Haven harbor;
• The Utility Wind Integration Group has awarded its Annual Achievement Awards to the Electric Reliability Council of Texas, Southern California Edison, the California Independent System Operator, Steve Lindenberg of the US Department of Energy, and wind industry consultant Edgar DeMeo;
• Axion International Holdings, a designer and developer of building materials made from 100-percent recycled plastics, has signed an agreement with New York City-based consulting firm Ecological Development LLC.