About modern climate state and suggestions on actions to counteract climate changes

Abstract

Over the last 20 years the mankind has been concerned about the problem of anthropogenic climate warming influencing noticeably many physical and biological systems and processes. Both negative and positive consequences are observed herein. Mankind attempts to take actions against climate warming using the efforts to control greenhouse gas emissions (first of all CO₂), however, these attempts give little results. The Intergovernmental Panel on Climate Change (IPCC) has been thoroughly assessing climate changes and their consequences over 20 years. It was noted that average global temperature over the last 100 years increased by 0.74°C. In the last report of the IPCC (2007), it was shown that to prevent warming by 2050 (at acceptable level) the CO₂ global emission should be cut by 50–85%, what is technologically impossible. Other methods are suggested to stabilize a modern climate, in particular, to introduce fine-disperse aerosol particles into the lower stratosphere. It is noteworthy that the Meeting of Presidents (and their Representatives) of Academies of Sciences from 13 countries to prepare a Statement for the G8 Summit in Tokyo in 2007, considered in detail the author’s proposal and insert a paragraph, where the research of that method (including holding a conference) was approved.