Since the Industrial Revolution, mankind has burned fossil fuels and deforested a lot, and the greenhouse gas emissions have continued to increase, which has led to a significant global warming in the 20th century. If long-term growth of greenhouse gas concentrations in the atmosphere is to be controlled, countries will need to intervene or Limit the use of fossil energy at the source and reduce greenhouse gas emissions; or increase the sink of greenhouse gases, that is, re-absorb the greenhouse gases emitted into the atmosphere through afforestation. Based on this, can it be launched? ['If you limit the use of fossil energy at the source, you can avoid a significant global warming.', 'If global greenhouse gas sinks are increased through afforestation, significant global warming can be avoided.', 'If countries do not restrict the use of fossil energy from the source and increase the sink of greenhouse gases, they cannot control the long-term growth of greenhouse gas concentrations in the atmosphere.', 'If countries restrict the use of fossil energy at the source or increase the sink of greenhouse gases through afforestation, they can control the long-term growth of greenhouse gas concentrations in the atmosphere.']