Is Global Change Man Made? Essay

Is Global Change Man Made? Essay

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Is Global Change Man Made?

“The Earth 's climate has changed throughout history. Just in the last 650,000 years there have been seven cycles of glacial advance and retreat, with the abrupt end of the last ice age about 7,000 years ago marking the beginning of the modern climate era — and of human civilization. Most of these climate changes are attributed to very small variations in Earth’s orbit that change the amount of solar energy our planet receives,” says Nasa. This is leading into to the big debate. Is global change man made? Or is this just made up. No it’s not made up at all. says, “When sunlight reaches Earth’s surface, it can either be reflected back into space or absorbed by Earth. Once absorbed, the planet releases some of the energy back into the atmosphere as heat (also called infrared radiation). Greenhouse gases like water vapor (H2O), carbon dioxide (CO2), and methane (CH4) absorb energy, slowing or preventing the loss of heat to space. In this way, GHGs act like a blanket, making Earth warmer than it would otherwise be. This process is commonly known as the “greenhouse effect.” Global warming is a big issue that affects the people, environment and world. If it does stop now, results would be catastrophic.

How will Global Warming affect us, humans and plants around us? Regents Earth Science says, “Global warming is affecting more than one species. Many of these species are closely related to us. Others, including plants and animals are also suffering from this huge impact of temperature rising of our earth and atmosphere. The main cause of global warming are HUMANS; we are the main cause of our own death! Evidence that proves that we are the main cause of global warming is the greenhouse effect; the...

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...s ago, sea levels were about 400 feet lower than they are today and have been steadily rising ever since. [60]According to Professor of Earth and Atmospheric Sciences at the Georgia Institute of Technology, Judith Curry, PhD "it is clear that natural variability has dominated sea level rise during the 20th century, with changes in ocean heat content and changes in precipitation patterns." [80] Freeman Dyson, Emeritus Professor of Mathematical Physics and Astrophysics at the Institute for Advanced Study at Princeton University, has stated that there is "no evidence" that rising sea levels are due to anthropogenic climate change.

To wrap it all up we need to stop climate change now! It will get really bad if we don’t. The climate is changing is really fast. The oceans are melting. Polar bears are dying. They aren 't the only ones. Do you think climate change is real?

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