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scientific facts on arctic climate change

FACT: Carbon dioxide, a byproduct of fossil-fuel combustion, is a greenhouse gas, which traps solar radiation in the atmosphere. part may be reproduced without the written permission. How will settlements and infrastructures be affected? This Digest is a faithful summary of the leading scientific consensus report produced in 2004 by the Arctic Climate Impact Assessment (ACIA): "Impacts of a Warming Arctic: Arctic Climate Impact Assessment " Learn more... 1.1 The world’s climate is changing. Changes in the Arctic will not only affect local people and ecosystems but also the rest of the world, because the Arctic plays a special role in global climate. 3.5 Access to Arctic resources is likely to be affected by climate change, including: wildlife, such as whales, seals, birds, and fish sold on world markets; and oil, gas and mineral reserves. However, abrupt and unexpected changes cannot be ruled out. The changes will also reach far beyond the Arctic, affecting global climate, sea level, biodiversity, and many aspects of social and economic systems. For their study, Nitze and his colleagues evaluated satellite images of the region surrounding Kotzebue and northwestern Alaska. Environmental groups hailed NOAA’s decision Wednesday, saying it was necessary to stave off steep population declines brought about by climate change. More... 10.2 The scenarios used in this assessment assume that changes will be gradual. Medical Xpress covers all medical research advances and health news, Tech Xplore covers the latest engineering, electronics and technology advances, Science X Network offers the most comprehensive sci-tech news coverage on the web. Rising temperatures are modifying the Arctic coastline and are expected to change it even more in the future. Your opinions are important to us. This document is subject to copyright. ... declining ice continue to trigger Arctic change. in the extreme northwest of Alaska. The Arctic is warming more quickly than almost any other region on Earth as a result of climate change. You can unsubscribe at any time and we'll never share your details to third parties. Changes in the Arctic can influence the global climate through three major mechanisms. Now scientists are reporting … The increase of ultraviolet (UV) radiation reaching the Earth’s surface as a result of the thinning of the ozone layer has negative effects on humans, animals and plants in the Arctic, particularly in the spring when living organisms are most vulnerable. These are formed when the permafrost soils begin to thaw and subside. American C… One of the better known: the continually shrinking summer sea-ice extent in the Arctic. The many indigenous communities whose cultures and activities are shaped by the Arctic environment are facing new challenges because of climate change, in addition to those posed by current social, economic, and political conditions. This summary was prepared in collaboration with the, Impacts of a Warming Arctic: Arctic Climate Impact Assessment, 1. Researchers have exposed major changes taking place in the insect communities of the Arctic. Significant changes are occurring on Earth, including increasing air and ocean temperatures, widespread melting of snow and ice, and rising sea levels. It’s a pervasive image, and you can’t help but feel an overbearing sense of guilt or pity for the animal when you see it. There remain important gaps in knowledge that will require improved long-term monitoring, studies of ecosystem processes, climate modeling, as well as analysis of impacts on society. In the pictures, the full and drained lakes can be easily distinguished. Climate change soon to be main cause of heat waves in West, Great Lakes . The content is provided for information purposes only. A global 2018 study published in the journal Science showed that every ecosystem on Earth could face a dramatic shift if climate change continues unabated. The loss of ice in Antarctica does not appear to be … Climate change made the Arctic greener. More On . It’s important to look beyond the image and … Your feedback will go directly to Science X editors. Introduction: Global climate change and the Arctic region. More... 6.2 Reduced sea ice is very likely to increase marine transport and access to resources. This week, new research confirms that a new Arctic climate system is, indeed, emerging. The Arctic (around the north pole, doesn’t have penguins, but has polar bears) is very different from the Antarctic (around the south pole, has penguins, but not polar bears). Sea level rise is likely to cause flooding of marshes and coastal plains and accelerate beach erosion. More... 4.3 Due to the warming, insect outbreaks will increasingly disturb large areas of forest. Facts Global Temperature Rise. Meltwater from the soil or from the winter snowfall and summer rainfall collects in the hollows. climate science. Understanding the ways in which these pollutants interact and influence Arctic climate … On average, the temperature on the Earth’s surface has increased by 0.6°C (1°F) over the last two centuries. Arctic. More... 6.3 Thawing ground will disrupt transportation, buildings, and other infrastructure. You can help us remain free and independant as well as to develop new ways to communicate science by becoming a Patron! But global warming is also leaving its mark on terrestrial permafrost. The Arctic is warming more quickly than almost any other region on Earth as a result of climate change. Alarm bells about climate change impacts in the Arctic sounded throughout the year. In the far north, the Arctic is mostly covered by snow and ice, whereas the southernmost part is covered by boreal forests. 416 part​s per million 1. We do not guarantee individual replies due to extremely high volume of correspondence. And that's worrying, the experts warn, because at the same time it means the permafrost's potential to preserve large amounts of carbon is shrinking at an alarming rate. 3. This summary was prepared in collaboration with the More... 3.2 The melting of Arctic ice and increased regional precipitation can add freshwater to the oceans, and potentially affect ocean currents in the North Atlantic. The Arctic is home to an array of plants, animals, and people that survive in some of the most extreme conditions on the planet and that are uniquely adapted to such conditions. However, because of the complexity of the Earth’s climatic system, major surprises are possible if climate evolves differently. In the Arctic, average temperatures have risen almost twice as fast as in the rest of the world and climate changes are particularly intense. 6. Beavers gnawing away at the Arctic permafrost, Searching for sub-eV sterile neutrinos using two highly sensitive detectors, Observations unveil dynamic magnetosphere of the magnetar Swift J1818.0−1607, Elephants found to have the highest volume of daily water loss ever recorded in a land animal, Sediment cores from Dogger Littoral suggest Dogger Island survived ancient tsunami, Study of river otters near oilsands operations shows reduced baculum strength. In the Arctic, this warming is expected to be substantially greater than the global average, and the following changes are expected over the current century *  : These projections assume a gradual warming. Published under the authority of the GreenFacts Scientific Board. More... 3.4 By 2100, melting of Arctic glaciers alone will have contributed to a sea level rise of roughly 5 cm out of the projected 10-90cm total rise for this century. Accordingly, the experts had expected several lakes to drain. December 15, 2015. Shrinking Ice Sheets. "The scale shocked us," says AWI geographer Ingmar Nitze. Arctic Climate Change. The Arctic includes Greenland, Iceland, and the northern parts of Norway, Sweden, Finland, Canada, Russia, and the United States. Winter 2017/2018 was the warmest in the region since continuous records began at the Kotzebue station in 1949. In between, there is a wide expanse of tundra. They find weather less stable and predictable, and are affected by changes in snow and sea ice. The International Polar Year (in 2007-2009) will be an opportunity to improve our understanding of the impacts of climate change. More... 4.4 Climate change is expected to increase the range of crops that can be grown in the Arctic and to extend the growing season.

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