10 Feb

Deforestation leads to big hikes in local temperature, study finds

first_imgCitation:Lejeune, Q., Davin, E. L., Gudmundsson, L., Winckler, J., & Seneviratne, S. I. (2018). Historical deforestation locally increased the intensity of hot days in northern mid-latitudes. Nature Climate Change, 1.FEEDBACK: Use this form to send a message to the editor of this post. If you want to post a public comment, you can do that at the bottom of the page. Researchers have discovered a correlation between deforestation and local temperature changes in many temperate mid-latitude locations around the world.These increases were particularly high in North America. The study found that deforestation in heavily cleared regions of the central U.S. contributed as much as 1 degree Celsius to local maximum temperatures.Overall, the study indicates that deforestation contributes around one-third to average hottest-day temperature increases in places that lost at least 15 percent of their forest cover. For years, scientists have been puzzling over what exactly deforestation does to temperature. But a study published recently purports to have figured it out on the small scale. It finds clearing forests significantly increased local temperature in some of the most deforested places in North America, Europe and Asia.Forests do things that both increase and decrease the temperature of the air around them. First, they’re dark, and dark things absorb more heat energy than light things, which reflect more of that energy back towards space. Clearing a forest generally makes an area lighter and increases its reflectivity, or “albedo.”Trees also emit gases that help form compounds that warm the atmosphere like ozone and methane. But they also emit cooling gases, and previous research published earlier this year found that, together, these gases have more of a cooling effect than a warming one.Research indicates trees have both warming and cooling impacts on their environment.New research published recently in Nature Climate Change adds to the argument that deforestation increases local temperatures. Researchers at the Institute for Atmospheric and Climate Science (ETH) in Switzerland and the Max Planck Institute for Meteorology in Germany combined observations with climate models to see if they could discern patterns between land cover and temperature changes.They discovered a correlation between deforestation and local temperature changes in many temperate mid-latitude locations around the world.“During the industrial period, many areas over the mid-latitudes – especially in North America, the current Eastern Europe and Russia – experienced high rates of deforestation,” lead author Quentin Lejeune, a researcher at ETH,” told Carbon Brief. “We found that this led to significant local increases in daytime temperature during hot days.”These increases were particularly high in North America. The study found that deforestation in heavily cleared regions of the central U.S. contributed as much as 1 degree Celsius to local maximum temperatures.One degree might not seem like much, but even minute shifts in temperature can have drastic impacts on climate. Take, for instance, the Paris Agreement. One of its core goals is limiting global warming to less than 2 degrees Celsius, which scientists believe is the threshold of climate catastrophe.Overall, the study indicates that deforestation contributes around one-third to average hottest-day temperature increases in places that lost at least 15 percent of their forest cover.The researchers write in their study that planting forests could help bring local temperatures back down. And they urge that land cover changes be taken into consideration when forecasting future climate scenarios and planning ways to mitigate warming.As Lejeune told Carbon Brief: “Decision makers who have to decide what the land should be used for – agriculture, biodiversity protection, reforestation to sequester carbon – should be aware that these decisions can have implications for the climate of the particular region that they live in.” Article published by Morgan Erickson-Davis Climate Change, Deforestation, Environment, Forest Loss, Forests, Global Warming, Global Warming Mitigation, Research, Temperate Forests, Temperatures Popular in the CommunitySponsoredSponsoredOrangutan found tortured and decapitated prompts Indonesia probeEMGIES17 Jan, 2018We will never know the full extent of what this poor Orangutan went through before he died, the same must be done to this evil perpetrator(s) they don’t deserve the air that they breathe this has truly upset me and I wonder for the future for these wonderful creatures. So called ‘Mankind’ has a lot to answer for we are the only ones ruining this world I prefer animals to humans any day of the week.What makes community ecotourism succeed? In Madagascar, location, location, locationScissors1dOther countries should also learn and try to incorporateWhy you should care about the current wave of mass extinctions (commentary)Processor1 DecAfter all, there is no infinite anything in the whole galaxy!Infinite stupidity, right here on earth.The wildlife trade threatens people and animals alike (commentary)Anchor3dUnfortunately I feel The Chinese have no compassion for any living animal. They are a cruel country that as we knowneatbeverything that moves and do not humanily kill these poor animals and insects. They have no health and safety on their markets and they then contract these diseases. Maybe its karma maybe they should look at the way they live and stop using animals for all there so called remedies. DisgustingConservationists welcome China’s wildlife trade banThobolo27 JanChina has consistently been the worlds worst, “ Face of Evil “ in regards our planets flora and fauna survival. In some ways, this is nature trying to fight back. This ban is great, but the rest of the world just cannot allow it to be temporary, because history has demonstrated that once this coronavirus passes, they will in all likelihood, simply revert to been the planets worst Ecco Terrorists. Let’s simply not allow this to happen! How and why they have been able to degrade this planets iconic species, rape the planets rivers, oceans and forests, with apparent impunity, is just mind boggling! Please no more.Probing rural poachers in Africa: Why do they poach?Carrot3dOne day I feel like animals will be more scarce, and I agree with one of my friends, they said that poaching will take over the world, but I also hope notUpset about Amazon fires last year? Focus on deforestation this year (commentary)Bullhorn4dLies and more leisSponsoredSponsoredCoke is again the biggest culprit behind plastic waste in the PhilippinesGrapes7 NovOnce again the article blames companies for the actions of individuals. It is individuals that buy these products, it is individuals that dispose of them improperly. If we want to change it, we have to change, not just create bad guys to blame.Brazilian response to Bolsonaro policies and Amazon fires growsCar4 SepThank you for this excellent report. I feel overwhelmed by the ecocidal intent of the Bolsonaro government in the name of ‘developing’ their ‘God-given’ resources.U.S. allocates first of $30M in grants for forest conservation in SumatraPlanet4dcarrot hella thick ;)Melting Arctic sea ice may be altering winds, weather at equator: studyleftylarry30 JanThe Arctic sea ice seems to be recovering this winter as per the last 10-12 years, good news.Malaysia has the world’s highest deforestation rate, reveals Google forest mapBone27 Sep, 2018Who you’re trying to fool with selective data revelation?You can’t hide the truth if you show historical deforestation for all countries, especially in Europe from 1800s to this day. WorldBank has a good wholesome data on this.Mass tree planting along India’s Cauvery River has scientists worriedSurendra Nekkanti23 JanHi Mongabay. Good effort trying to be objective in this article. I would like to give a constructive feedback which could help in clearing things up.1. It is mentioned that planting trees in village common lands will have negative affects socially and ecologically. There is no need to even have to agree or disagree with it, because, you also mentioned the fact that Cauvery Calling aims to plant trees only in the private lands of the farmers. So, plantation in the common lands doesn’t come into the picture.2.I don’t see that the ecologists are totally against this project, but just they they have some concerns, mainly in terms of what species of trees will be planted. And because there was no direct communication between the ecologists and Isha Foundation, it was not possible for them to address the concerns. As you seem to have spoken with an Isha spokesperson, if you could connect the concerned parties, it would be great, because I see that the ecologists are genuinely interested in making sure things are done the right way.May we all come together and make things happen.Rare Amazon bush dogs caught on camera in BoliviaCarrot1 Feba very good iniciative to be fallowed by the ranchers all overSponsoredlast_img

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