The Country Land and Business Association and Savills plc have launched a new free web-based calculator to enable farmers and land managers to work out their carbon (actually GHG) accounts.

Edited By Keith Smith Nitrous oxide, N2O, is the third most important (in global warming terms) of the greenhouse gases, after carbon dioxide and methane. As this book describes, although it only comprises 320 parts per billion of the earth's atmosphere, it has a GWP nearly 300 times greater than that of carbon dioxide.

Edited By Dave Reay, Pete Smith and Andre van Amstel Methane is a powerful greenhouse gas and is estimated to be responsible for approximately one-fifth of man-made global warming. Per kilogram, it is 25 times more powerful than carbon dioxide over a 100-year time horizon -- and global warming is likely to enhance methane release from a number of sources.

The Sustainability Institute, the Massachusetts Institute of Technology, and Ventana Systems have jointly developed a Climate Scoreboard. This is an online embeddable widget that allows the public, journalists and others to track progress in the ongoing negotiations to produce an international climate treaty.

In 2009 the CBI and Price Waterhouse Coopers released this practical guide for companies on reporting greenhouse gas emissions based on a fictitious company, 'Typico plc'. The template illustrates how companies can report their strategy, targets, performance and benchmarking of a company's efforts to reduce its carbon footprint and adapt to climate change. It also demonstrates how to connect emissions reporting data with financial data.

Defra have just published a study which examines the scope for applying research in animal genomics and breeding to reduce nitrogen and methane emissions from livestock .