Global temperature rise in the past 30 years or "crazy growth" of plants?

According to foreign media reports, scientists have studied the satellite images from 1982 to 2010 in detail and found that there is a relationship between plant growth and carbon dioxide concentration in Africa, the Middle East and the interior of Australia When the atmospheric carbon dioxide concentration rises, the plants in the arid areas appear "crazy growth" phenomenon, and the number shows a sharp rise The study was conducted by Randall Donohue, a scientist at the Commonwealth organization for scientific and industrial research in Australia, and his team Between 1982 and 2010, the global atmospheric carbon dioxide concentration increased by about 14% and the plants in these areas increased by 11% in the same period, showing a positive correlation trend After analyzing satellite images over the past 30 years, scientists have found that the atmospheric carbon dioxide concentration is positively correlated with the plant biomass in arid areas NASA's satellite observations show that the earth's temperature has risen by about 6 ℃ in the past century Through satellite images, we can see the distribution of vegetation on the earth directly, and detect the effect of carbon dioxide in warm and dry environment NASA's satellite photos show that the temperature over the Arctic is rising, and in the past century, the earth's temperature has risen by about 6% Many previous studies have found that there is an increase in the amount of vegetation around the world, but it is still uncertain what causes the increase Researchers can only guess the reason Plants convert carbon dioxide and water into oxygen through photosynthesis Leaves of plants can get more carbon from the air When higher concentrations of carbon dioxide appear in the atmosphere, photosynthesis can be further promoted Due to the large-scale combustion of fossil fuels such as coal and oil, the level of carbon dioxide in the atmosphere has been increasing Scientists have found that the growth rate of carbon dioxide in the atmosphere has reached 40% In the past century, the temperature of the earth has risen by about 6 ℃ Despite the increase in the number of vegetation, this phenomenon does not mean that high concentration of carbon dioxide is beneficial The negative impact of greenhouse gas emissions is far greater than its positive side If the carbon dioxide content in the atmosphere continues to rise, then the earth will become a veritable "greenhouse planet".