Negotiations between European leaders, especially Germany's Merkel and the Obama administration on climate change at G8 meeting. The U.S. and Europe try to work out differences. The U.S. is vague about some language such as the starting year against which emissions reductions will be measured, and has resisted the European pressure to set strong goals over the next 10 years. Europe wants 1990, while the USA, Australia and Japan prefer 2005. Europe wants to see language in aformal document that is being developed for the G-8 meeting, which also includes developing countries, for limiting the rise in global temperatures to 2 degrees celsius, or 3.6 degrees Fahrenheit, above pre-industrial levels.