The placement of environmentally displaced persons is imminent. Involving as many countries as possible in the resettlement of environmentally displaced persons, while protecting their culture and human rights, are the primary goal of the resettlement program. However, countries may refuse to participate in resettlement programs if their interests are not fully considered. The rights of the environmentally displaced persons cannot be protected. The model involves the interests of all parties to ensure the wide participation of all countries in the world. Then, we use quantitative assessment to assess the risk of cultural loss and protect culture and human rights of environmentally displaced persons by controlling this risk. Firstly, in order to calculate the number of people who are likely to be environmentally displaced persons in the future, we build a prediction model based on Markov Chain. By analyzing the average altitude of each country and the predicted sea level rise, we calculate the number of countries likely to be submerged over time. Combining the projected future population of each country, we calculate the total number of people at risk of becoming environmentally displaced persons. Secondly, we link the number of environmentally displaced persons that countries should place with the two goals of human rights protection. Establish Double-Score model to allocate the number of people that each country should place reasonably. The model takes into account countries’ carbon emissions and their suitability for migration. The two integral indexes in the model are as follows: Score of carbon dioxide emission. The higher a country’s score, the more responsibility it has to accommodate environmentally displaced persons. The index is converted from the country’s per capita carbon emissions and total carbon emissions, using the Paris Climate Agreement’s calculation of carbon emissions. Score of suitability for immigration. The lower the Score of a country, the higher the Score of carbon emission can be deducted. Meanwhile, the better a country’s cultural and human rights protection of environmentally displaced persons, the higher the score. We encourage countries to actively protect the human rights and culture of refugees. As a part of its commitment to the Paris Climate Agreement, the countries of the world must keep their total score below the set threshold.