The result of class division is racism and hatred. The capitalists don't care who is on the bottom of the social ladder. They don't really care whether immigrants, Native Americans, African Americans, Jews, or other minority groups are on the bottom. They care solely about their own pocketbooks and increasing them at the expense of others. So, racism and hatred cannot be ended within the capitalist system.
Pollution is another result of capitalism.
Nearly all the exploitation of earth comes from the profit system. It also doesn't pay for anybody to clean the ecological disasters up, so much of what goes on is unstoppable or uncorrectable. Another problem is the environmentalists themselves. Many of them only champion environmental reform within capitalism. Also, many environmentalists and ecologists have misanthropic solutions to the earth's problems.