public void UpdateContinentPollution(ContinentPollution continentPollution)
{
string sql = "update ContinentPollution set Pollution = @Pollution, Year = @Year, ContinentId = @ContinentId where Id = @Id";
db.Execute(sql, new { continentPollution.Pollution, continentPollution.Year, continentPollution.ContinentId, continentPollution.ID });
}