VS1 - VS2: You can see flaws with a 10X microscope, but it takes a long time (more than about 10 seconds). SI1 - SI2: You can see flaws with a 10X microscope. I1 - I3: You can see flaws with the naked eye. Consider avoiding I2-I3 diamonds. REMEMBER: For grades IF through SI, a diamond's clarity grade has an impact on the diamond's value, not on the unmagnified diamond's appearance. While Flawless diamonds are the rarest, a diamond does not have to be flawless to be stunning.
Global Warming affects us all, every living thing. Understanding the risks and what can be done to stem Global Warming effects are being addressed at all levels â individual, community, government agency and organization and at the international level. Below you will find some information about who is doing what.
Solutions to Global Warming There is no single solution to global warming, which is primarily a problem of too much heat-trapping carbon dioxide (CO2), methane and nitrous oxide in the atmosphere. (Learn more about the causes of global warming.) The technologies and approaches outlined below are all needed to bring down the emissions of these gases by at least 80 percent by mid-century. To see how they are best deployed in each region of the world, use the menu at left. 1  Boosting energy efficiency: The energy used to power, heat, and cool our homes, businesses, and industries is the single largest contributor to global warming. Energy efficiency technologies allow us to use less energy to get the sameâor higherâlevel of production, service, and comfort.