According to the U.N. “energy efficiency is the most promising means to reduce greenhouse gases in the short term.” This could result in stricter standards in using fossil fuels for cars, factories, coal-fired power plants or buildings. A U.N. report about climate investments also stated that greenhouse gas emissions could be restricted more cheaply in developing nations than in wealthy states in coming years.
The report states that approximately $200 billion-$210 billion of global additional investment and financial flows will be required in 2030 to return greenhouse gas emissions to current levels. The report predicts a move towards renewable energies and some nuclear power. Environmentalists claim that the report is deficient in ambition and that emissions need to be below current levels in 2030.
A lot of the follow-up from the IPCC report points to the scientists under estimating the human impact on climate change. The human race has to start acting and that means with individual behaviour changing.