Climate change is the change of climate patterns mostly due to the increase of carbon dioxide and other greenhouse gas produced by the burning of fossil fuels after the industrial revolution. Climate change is bad for humans and the environment. For example, polar bears are dying due to the loss of habitat. The ice in the poles are causing the water levels to rise and the increase in temperature of the oceans. The first reason climate change is bad for the environment is the decrease in the polar bear population. For example, polar bears spend the summer on land waiting for the water to freeze because that’s where they catch their prey like seals, walruses and beluga whales. With the climate change, the water doesn’t freeze as fast (about 2 weeks later) leaving the polar bears without food for longer into the winter. Without the polar bears being able to build up their fat reserves, they are unable to raise or care for their young making the population decrease. If humans don’t change their production of greenhouse it is estimated that the polar bear population will be extinct in 30-40 years (Castro de la Guardia 2013, Stirling 2012). The second reason climate change is bad for the environment is the melting of ice in the poles. The ice is melting in the poles due to the large number of greenhouse gases like carbon dioxide that humans are producing. The greenhouse gases are acting like a blanket or a greenhouse trapping in heat and not letting it escape. If humans keep producing greenhouse gases like we do today it is predicted that all the ice on earth will melt in the next 5,000 years according to (national geographic, September 2013). If all the ice melts on earth the sea level will rise 216 feet taking out large cities like New York City, Washington, Houston, New Orleans and even the state of Florida. The third reason climate change is bad for the environment is the temperature rise in the ocean. Climate change has the biggest impact on our oceans. The oceans provide the earth with 50% of its oxygen. The temperature the ocean has risen .3° Fahrenheit in the last 49 years (national geographic December 2015) which can be bad news for life at sea. The rise of acidity has risen by 30% because of the carbon dioxide we are producing putting the fish lower on the food web at risk putting the whole ocean ecosystem at risk. That’s devastating news for the billion people relying on fish as their primary food source. In conclusion, climate change is bad for the environment and humans because polar bears are dying, the ice is melting at the poles and the ocean ecosystem is at risk. So if humans keep producing greenhouse gases like we do today it will be scary to see what will happen in the future.