![]() As a result, temperature in the air and ocean is now increasing faster than at any time in human history. ancient climate data measured through ice sheets, tree rings, sediments and more) of the earth. The human-caused increase in carbon dioxide in the atmosphere is much greater than any observed in the paleoclimate history (i.e. Today, however, by burning fossil fuels, causing deforestation ( forests are key parts of the planet’s natural carbon management systems), and operating large-scale industrial agriculture, humans are rapidly increasing levels of heat-trapping gases in the atmosphere. Over Earth’s history, heat-trapping gas levels have gone up and down due to natural factors. The more heat-trapping gases in the atmosphere, the thicker the blanket and the warmer it gets. Greenhouse gases, which include carbon dioxide and methane, trap some of the Earth’s heat that would otherwise escape to space. Without this blanket, our Earth would be a frozen ball of ice. ![]() This blanket keeps the Earth more than 30 degrees Celsius (over 60 degrees Fahrenheit) warmer than it would be otherwise. Scientists have known for centuries that the Earth has a natural blanket of greenhouse or heat-trapping gases. Whatever you choose to call it, the most important thing is that we act to stop it. Left unchecked, these impacts will spread and worsen, affecting our homes and cities, economies, food and water supplies as well as the species, ecosystems, and biodiversity of this planet we all call home.Īll of these terms are accurate, and there’s no perfect one that will make everyone realize the urgency of action. Many types of extreme weather, including heatwaves, heavy downpours, hurricanes and wildfires are becoming stronger and more dangerous. As the planet heats up (global warming), we see broad impacts on Earth’s climate, such as shifting seasons, rising sea level, and melting ice.Īs the impacts of climate change become more frequent and more severe, they will create-and in many cases they already are creating-crises for people and nature around the world. Each of these terms describes parts of the same problem-the fact that the average temperature of Earth is rising. ![]()
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