Health effects due to titanium nanoparticles in food and toothpaste cannot be excluded Health effects due to exposure to titanium dioxide nanoparticles via food, food supplements and toothpaste cannot be excluded.
Without measures emissions of HFC greenhouse gases will increase rapidly Without global agreement on the use of HFCs, their contribution to the greenhouse effect may increase sharply to 10 percent of that of CO2 by 2050. The current contribution is less than 1 percent.