According to scientists, one million tons of aerosol sprayed above the planet would make possible a reduction of solar radiation by 0.5-1%, and a reduction of air temperature by 1-1.5 degrees Celsius.

Unseasonably hot May weather with temperatures at 32.1 degrees Celsius (89.7 degrees Fahrenheit) beating a 116-year-old maximum has already seen last year's energy consumption for this time of year surpassed by about 8% in Moscow and 12% in St. Petersburg, a spokeswoman for the UES electricity monopoly said earlier.

Izrael said the method demands more detailed development, and that a relevant decision on the international level should be made for it to come into force.

However, the academic said the method is not an alternative to measures to fight climate change envisioned by the Kyoto Protocol, which contains commitments by some countries on specific volumes of greenhouse gas emission reductions.

"I don't want any contradiction of the Kyoto Protocol, but in parallel with existing methods, cheaper ones should be developed. I am advocating that work be conducted simultaneously on several methods," Izrael said.

He also said the Russian scientists' method will make the fight against warming faster and cheaper. "It is also good that it can be stopped at any moment," Izrael said.

The Russian academic said global temperature in the coming 100 years could rise by 1.4-4 degrees Celsius, which, he said, will cause droughts, floods and cyclones. He said Russia could face the extinction of 20-30% of its animals and plants if temperatures rise by 2 degrees Celsius.

However, Izrael said the current high temperatures in Moscow are not connected with a global climate change.

"Any fact, even the most acute should not be directly linked to climate change, but should be considered as part of temperature fluctuations," he said.

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