What Are the Effects of Global Warming/Climate Change?

Earth's normal climate changes that happen on the earth. These are usually due to variations in the orbit around the sun, response to volcanic eruptions, and also the different levels of greenhouse gas. Scientists are still studying the specific causes of recent global warming, but scientists agree that the main reason of the raised level of greenhouse gasses are from what humans are doing. However they have only been studying it for 50 years. One thought for the reasons of global warming is the result of variations in solar activity. Even though I think this is true this is no reason to pollute and add to greenhouse gasses. Studies show that the earth is warming at about 0.5°C or 0.9°F even if we stabilized gasses at where they were in the year 2000. It looks like the earth is warming no matter what we do.