Why we care about the 97% expert consensus on human-caused global warming | Dana Nuccitelli | Environment Three distinct studies using four different methods have independently shown that the expert consensus on human-caused global warming is 97 ± 1%. The result is the same whether we ask the experts’ opinions, look at their public reports and statements, or examine their peer-reviewed science. Even studies that quibble about the precise percentage have accidentally reinforced the 97 ± 1% consensus. The evidence is crystal clear that humans are the main cause of the current global warming, and the expert consensus reflects the strength of that body of evidence. It’s not easy to convince 97% of scientific experts about anything – that requires some powerful scientific evidence. And yet public opinion is a very different story. The sources of this disparity and how it can be corrected are the subjects of an intense debate amongst social scientists. The other school of thought, led by Dan Kahan at Yale, argues that the problem boils down to cultural biases.
Modules & Activies Main Page Using climate science models and NASA satellite images and data sets, students apply problem-solving methods and scientific inquiry skills to address six climate-related scenarios. More Each of the problem-based learning scenarios also includes teacher pages to help educators implement the modules into their classroom teaching. All of the materials are free. More Login Whether you’re new to problem-based learning or have extensive experience using this type of instructional approach, we encourage you to view our problem-based learning pages. The Exploring the Environment legacy modules include four variations on problem-based learning—activities, basic, comprehensive, and advanced. Scientists are explorers. Problem-based learning is designed to stimulate discussion within classes, among teachers, with scientists, and across communities. The K-4 Earth Science modules are organized into four areas: Biomes; Weather, Seasons, and Climate; Remote Sensing; and Earth System.
Climate Change and Global Warming for Children Introduction to Climate change Many people make Climate Change and Global Warming a scary and difficult thing to understand, but it’s not. Scientists have warned that the world's climate has changed a lot, and has affected many living and non-living things. Many places that were warmer are now getting colder, and many colder regions are getting much colder or even warmer (know as Global Warming). For example, between 1901 and 2012, it is believed that the earth's temperature has risen by 0.89 °C. Some people do not believe that these are caused by human activities. Well, whatever it is, we would like to know more, and take a few good points from this confusion, and use them to make our world a better place to live. Tip... Global warming (as well as global cooling) refers specifically to any change in the global average surface temperature. Let’s start by learning a few tricky terms that we may need to explain Climate Change better.
10 Things That Don’t Disprove Global Warming Whenever the temperature plunges dramatically and there's heavier snowfall than usual in some states, people will cite the arctic weather as proof that global warming is a hoax. During the cold snap in early 2014, for example, businessman Donald Trump tweeted derisively, "This very expensive GLOBAL WARMING bull---- has got to stop. Ourplanet is freezing, record low temps, and our GW scientists are stuck in ice" [source: Mooney]. That's not too surprising, actually, since psychological research has found that people's views about climate change tend to be influenced by the weather on the day that they are interviewed [source: Konnikova]. "In recent times, high-temperature records have been repeatedly broken much more often than low-temperature records," he wrote in an article for CNN.
EU FORESTS AND FOREST RELATED POLICIES - Environment Additional tools The EU currently contains 5 % of the world's forests and EU forests have continuously expanded for over 60 years, although recently at a lower rate. EU Forests and Other Wooded Land now cover 155 million ha and 21 million ha, respectively, together more than 42 % of EU land area. As regards Member States national forest policies, they are formulated within a clearly defined framework of established ownership rights and with a long history of national and regional laws and regulations based on long term planning. Although the Treaties for the European Union make no provision for a common forest policy, there is a long history of EU measures supporting certain forest-related activities, coordinated with Member States mainly through the Standing Forestry Committee. The EU Forestry Strategy adopted in 1998 puts forward as its overall principles the application of sustainable forest management and the multifunctional role of forests. Forest Policy in the European Union
Scientists Uncover Evidence Of Impending Tipping Point For Earth By Climate Guest Contributor on June 10, 2012 at 2:42 pm "Must-Read: Scientists Uncover Evidence Of Impending Tipping Point For Earth" Image: Cheng (Lily) Li. JR: If we stay anywhere near our current greenhouse gas emissions path, we will cross many climate tipping points this century. There’s the nearby tipping point for an ice-free arctic, with all that means for making our weather much more extreme and for triggering another tipping point, the rapid loss of carbon from the permafrost. We’re near 400 parts per million atmospheric concentration of C02, rising 2+ ppm a year (a rate that is projected to rise as emissions increase and carbon sinks saturate). A major new study has been released on tipping points in Nature, “Approaching a state shift in Earth’s biosphere” (subs. req’d). UC Berkeley professor Tony Barnosky explains how an increasing human population, coupled with climate change, could irreversibly alter Earth’s ecosystem. by Robert Sanders, via UC Berkeley News Center
Weather Wiz Thunderstorms What is a thunderstorm? A thunderstorm is a storm with lightning and thunder. Its produced by a cumulonimbus cloud, usually producing gusty winds, heavy rain and sometimes hail. What causes a thunderstorm?The basic ingredients used to make a thunderstorm are moisture, unstable air and lift. When are thunderstorms most likely to occur? How many thunderstorms are there every day? What is lightning? What causes lightning? Have you ever rubbed your feet across carpet and then touched a metal door handle? Click Here to see where lightning is currently striking across the U.S.What causes thunder? How far away can you see lightning and hear thunder? What is hail? What causes the wind to blow? What is a gust front? Know the Lingo SEVERE THUNDERSTORM WATCH - A severe thunderstorm (damaging winds of 58 miles per hour or more, or 1" hail in diameter or greater) is likely to develop in your area. Know the Facts The typical thunderstorm is 15 miles in diameter and lasts an average of 30 minutes.
Weather Wiz Kids weather information for kids Climate What is climate?Climate is the average weather usually taken over a 30-year time period for a particular region and time period. Climate is not the same as weather, but rather, it is the average pattern of weather for a particular region. Weather describes the short-term state of the atmosphere. What is our climate system? What causes weather? Click Here to learn more about the Earth's water cycle. Why do we have seasons? What is the significance of the Sun to the Earth? Why do we get more sunlight in the summer than in the winter? What is the purpose of the Moon? Why do the leaves change color? What is Climate Change? What is Global Warming? Is the Earth getting warmer? Global Warming may be a big problem, but can you make a difference? What is El Niño? What type of a climate pattern do we see with an El Niño? What type of climate pattern do we see with La Niña? What is the tropopause? What is deforestation? What is erosion? What is acid rain? Climate Activities
Short Answers to Hard Questions About Climate Change 3. Is there anything I can do? Fly less, drive less, waste less. You can reduce your own carbon footprint in lots of simple ways, and most of them will save you money. Perhaps the biggest single thing individuals can do on their own is to take fewer airplane trips; just one or two fewer plane rides per year can save as much in emissions as all the other actions combined. If you want to offset your emissions, you can buy certificates, with the money going to projects that protect forests, capture greenhouse gases and so forth. In the end, though, experts do not believe the needed transformation in the energy system can happen without strong state and national policies.
forest — Environmental Terminology Discovery Service — EEA Networks Networks European Topic Centres (ETCs) More networks EU partners International cooperation Notifications Get notifications on new reports and products. Subscriptions Sign up to receive our reports (print and/or electronic) and quarterly e-newsletter. Follow us Twitter Facebook YouTube channel RSS Feeds More Upcoming environmental events around the world European Algae Biomass 2014 International conference on Environmental Footprinting in the food & drink sector and beyond Open European Day at the Resilient Cities Conference Submit a new event More next previous items Skip to content. | Skip to navigation European Environment Agency (EEA) Sound and independent information on the environment Advanced search A-Z Glossary Sections Environmental Terminology and Discovery Service (ETDS) forest Alphabetically Terminology Sources Publications Maps and graphs Datasets Indicators Multimedia Forest fires in Southern Europe destroy much more than trees ... www.eea.europa.eu www.eea.europa.eu/... www.eea.europa.eu/... forest
Trapped Antarctic Methane Could Escape, Worsen Warming Swamp gas trapped under miles of Antarctic ice, a chemical souvenir of that continent's warmer days, may someday escape to warm the planet again, an international team of researchers report in Nature this week. The researchers suggest that microbes isolated from the rest of the world since the ice closed over them, some 35 million years ago, have kept busy digesting organic matter and making methane—a much more effective greenhouse gas than carbon dioxide. If global warming causes the ice sheets to retreat in the coming decades or centuries, the researchers warn, some of the methane could belch into the atmosphere, amplifying the warming. Jemma Wadham of the University of Bristol, England, and her colleagues have not actually detected methane-producing microbes under the Antarctic ice sheet. The presumption now is: Microbes are everywhere. "You've got bugs, you've got organic carbon in sediments, and there's no oxygen because it's so far from the atmosphere," Wadham said.
National severe weather Step into the wild world of weather! What is a wall cloud? What's the difference between a watch and a warning? Is it ever “too cold to snow”? Learn all about thunderstorms, tornadoes, hail, lightning, floods, damaging winds and severe winter weather. Thunderstorms There can be as many as 40,000 thunderstorms each day around the world. Learn more → Tornadoes Much about tornadoes remains a mystery. Learn more → Floods Except for heat-related fatalities, more deaths occur from flooding than any other weather-related hazard. Learn more → Lightning Lightning is one of the oldest observed natural phenomena on earth. Learn more → Hail Hail can cause billions of dollars of damage to structures, crops and livestock. Learn more → Damaging Winds Straight-line winds are responsible for most thunderstorm damage. Learn more → Winter Weather Forecasting winter weather accurately is very difficult because a degree or two of temperature change can mean the difference between snow or freezing rain. Learn more →
Global warming is real, and it’s our fault — let’s fix it EDITORIALS August 20, 2013 5:20PM storyidforme: 53814643 tmspicid: 19835014 fileheaderid: 9082689 Updated: September 22, 2013 6:25AM It’s us. We did it. And now we have to fix it. It’s hard to imagine drawing any other conclusion from the latest news on global warming, this time from the preeminent body on the topic: The odds are at least 95 percent that human activity is the cause of warming of the planet since the 1950s, a United Nations panel of experts has concluded in a draft report leaked to Reuters and the New York Times. That 95 percent figure is up from 90 percent in 2007, 66 percent in 2001 and about 50 percent in 1995. “It is extremely likely that human influence on climate caused more than half of the observed increase in global average surface temperature from 1951 to 2010,” the draft report says, according to the New York Times. The draft report lays out alternate futures, depending on the actions (or inactions) of governments across the globe.
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