Climate business

Eprida is a US company investigating and promoting the use of agricultural waste biomass to produce biochar as a soil improver, and biodiesel / other biofuels. The company holds a number of patents related to the technologies it has developed.
The Stockholm Network is a leading pan-European think tank and market oriented network, based in London, bringing together "Europe's brightest policymakers and thinkers" and "more than 130 market-oriented think tanks from across Europe", "giving us the capacity to deliver local messages and locally-tailored global messages across the EU and beyond." The SN is active in the field of climate change and has published useful documents on the subject of market-based solutions to climate change.
Evolution Markets - describes itself as the "Intersection of Environment, Energy and Finance", offering financial and brokerage service solutions within the environmental and energy marketplace.
ECX - the London-based European Climate Exchange, which provides an important trading environment for Allowances under the EU-ETS.
Point Carbon is a provider of independent news, analysis and consulting services for European and global power, gas and carbon markets, monitoring fundamental information, key market players and business and policy developments. Based in Oslo, it also has offices in Brussels, Kiev, London, Tokyo and Washington DC.
Vertis Environmental Finance is a Hungary-based company dealing in EUAs and other carbon instruments.
Ecosecurities is one the world's leading organisations creating and trading in carbon instruments created by the Kyoto Protocol flexibility mechanisms and the EU-ETS. Definitely one of the more ethical operators in the business.
Aluminum and climate change - according to the International Aluminium Institute. "The industrial processes of the Primary Aluminium Industry were directly responsible in 1997 for emitting 110 million tonnes of CO2 equivalents. 50 million tonnes (45%) of which originated from two perfluorocarbon compounds (PFCs); tetrofluormethane (CF4) and hexofluormethane (C2F6). On average the smelting process itself is responsible per tonne of aluminium for the production of 1.7 tonnes of CO2 (from the consumption of the carbon anodes) and the equivalent of an additional 2 tonnes of CO2 from PFC emissions. PFCs are potent global warming gases as compared to carbon dioxide and have long atmospheric lifetimes. For example one kg of PFC (CF4) is equivalent to 6500 kg of CO2." Hence the Kyoto2 proposal to control aluminium industry PFCs and other PIGGs at source.
The Climate Group is an independent, nonprofit organization dedicated to advancing business and government leadership on climate change.
Climate Care is one of the leading companies in the "voluntary offset" business. They also provide a useful toolkit for working out carbon emissions from flying and other activities.