In the context of global warming today, countries have benefited or damaged to varying degrees. Some impacts are positive, while others are negative. Some countries are both a source of global warming pollution and climate warming. Victims, these have affected their attitudes to the introduction of national policy programs to address climate change and international climate policy development. It can be inferred from this:. ['All countries are beneficially affected by global warming.', 'All countries are adversely affected by global warming.', 'Some countries are victims of global warming.', 'Some countries are not a source of pollution for global warming.']