Reuters: Global carbon dioxide (CO2) emissions in 2009 fell 1.3 percent to 31.3 billion tonnes in the first year-on-year decline in this decade, German renewable energy institute IWR said on Friday. The Muenster-based institute, which advises German ministries, cited the global economic crisis and rising investments in renewable energies for the fall in emissions. Global investment in renewable installations for power, heat and fuels last year rose to 125 billion euros ($161 billion) …