Pollution is the introduction of contaminants into the environment through human or natural actions. It has detrimental effects on living organisms, making environments unable to sustain life. Different types of pollution include air, water, noise, and land pollution. Air pollution occurs when harmful gases, dust, fumes or odors are introduced into the air. Water pollution changes the quality of water in a way that harms living things. Noise pollution includes any loud, undesirable noise. Land pollution degrades the earth's surfaces through misuse of resources. Environmental issues today include global warming, pollution, loss of natural resources, and nuclear problems. Global warming increases temperatures due to greenhouse gases. Pollution is a daily problem. Loss of resources threatens ecosystems as