Zaloguj
Forum Forum o tworzeniu muzyki FORUM PRZENIESIONE NA ADRES: www.MUZONEO.pl Strona Główna
->
Poszukiwane Poszukiwani
Napisz odpowiedź
Użytkownik
Temat
Treść wiadomości
Emotikony
Więcej Ikon
Kolor:
Domyślny
Ciemnoczerwony
Czerwony
Pomarańćzowy
Brązowy
Żółty
Zielony
Oliwkowy
Błękitny
Niebieski
Ciemnoniebieski
Purpurowy
Fioletowy
Biały
Czarny
Rozmiar:
Minimalny
Mały
Normalny
Duży
Ogromny
Zamknij Tagi
Opcje
HTML:
NIE
BBCode
:
TAK
Uśmieszki:
TAK
Wyłącz BBCode w tym poście
Wyłącz Uśmieszki w tym poście
Kod potwierdzający: *
Wszystkie czasy w strefie EET (Europa)
Skocz do:
Wybierz forum
Produkcja
----------------
Coś od siebie
Pomoc techniczna
Poszukiwane Poszukiwani
Od czego zaczynać?
Ogólne propozycje
Kup!
Instrument
Sprzedaj!
RADIO INTERNETOWE aron
Kulturowo
----------------
Nowe płyty
Talenty! talentów szukam...Talenty!
OGÓLNE
Linki:D
RAP & HIP HOP
ROCK
POP
ALTERNATYWNE
CiChA mUzYkA
Kącik
----------------
Kącik dla tych co piszą teksty
Adresy stron producętów i wytwórni
Twój ulubiony kawałek hmm..a może kawałki?
O wszystkim Dla wszystkich
----------------
Rozmowy nie kontrolowane:)
Cenzurownia
O miłości słow kilka...
Imprezy medialne
ZOSTAW ŚLAD
Kosz
----------------
Wszystko co złe i niepotrzebne
Przegląd tematu
<table border="0" cellpadding="3" cellspacing="1" width="100%" class="forumline"> <tr> <th class="thCornerL" width="22%" height="26">Autor</th> <th class="thCornerR">Wiadomość</th> </tr> <tr> <td width="22%" align="left" valign="top" class="row1"><span class="name"><a name=""></a><b>joas8zpq3eh</b></span></td> <td class="row1" height="28" valign="top"><table width="100%" border="0" cellspacing="0" cellpadding="0"> <tr> <td width="100%"><img src="http://picsrv.fora.pl/Aniseed/images/icon_minipost.gif" width="12" height="9" alt="Post" title="Post" border="0" /><span class="postdetails">Wysłany: Czw 11:17, 31 Mar 2011<span class="gen"> </span> Temat postu: cheap coach diaper Biofuels a Coach Crossbody outl</span></td> </tr> <tr> <td colspan="2"><hr /></td> </tr> <tr> <td colspan="2"><span class="postbody">Growing More Corn in the Midwest for Ethanol Increases Nitrogen Export by the Mississippi River <br />Using an Ecosystem Model to Identify Environmental Trade-offs <br />However, growing corn requires lots of nitrogen fertilizer and corn production in the American Midwest already contributes significantly to the nitrogen exported to the Gulf of Mexico by the Mississippi River. Furthermore, most of the increased corn production in 2007 occurred within the northern Mississippi River watershed. Thus, the Energy Policy ethanol goals directly conflict with the Task Force&rsquo;s goal of reducing nitrogen export. <br />This unexpected trade-off between energy security and lower carbon emissions on the one hand and a healthier coastal ecosystem on the other exemplifies the challenge of crafting environmental policy that broadly supports sustainability. It also emphasizes the need to look widely for unexpected conflicts during policy development. The ecosystem modeling approach taken by Donner and Kucharik is <br />Rising energy costs and environmental concerns have led a number of countries to create energy policies that promote the production of biofuels to both increase energy security and reduce carbon emissions. Recent U.S. Energy Policy set a domestic production target of biofuels at 15-36 billion gallons of ethanol and biodiesel biofuels per year by 2022. <br />Nitrogen Pollution from Fertilizer in the Mississippi River Causes the Dead Zone in the Gulf of Mexico <br />Biofuels like Corn-Ethanol are Intended to Increase Energy Security and Reduce Carbon Emissions <br />Read on <br />Digital Corn <br />'Dead Zones' and Climate Change <br />Agriculture Impacts Oceans <br />Human actions can have serious ecological impacts, even those meant to solve environmental problems and increase sustainability. Take the policy-driven boom in corn-ethanol in the United States: while intended to increase energy security and reduce carbon emissions, this action may increase the size of the low oxygen &lsquo;dead zone&rsquo; in the northern Gulf of Mexico. <br />Recent science confirms this conflict. In a large-scale ecosystem modeling analysis, scientists Simon Donner and Christopher Kucharik showed that expanded corn-ethanol production in the Midwest would increase nitrogen export by the Mississippi River above current levels(S. Donner and C. Kucharik, 2008 <a href="http://www.cheapcoachere.com/coach-crossbody-bags" target="_blank" class="postlink">cheap Coach Crossbody</a>, 'Corn-based ethanol production compromises goal of reducing nitrogen export by the Mississippi River', <span style="font-style: italic">Proceedings of the National Academy of Sciences</span>, 105(11) <a href="http://www.cheapcoachere.com/coach-diaper-bags" target="_blank" class="postlink">cheap coach diaper</a>, pages 4513 to 4518). <br />The dead zone is caused by the influx of excess nitrogen delivered by the Mississippi River, which largely originates from agricultural fertilizers. It has serious impacts on the Gulf&rsquo;s coastal ecosystem and the commercial fisheries it supports. This is a long-recognized problem; the Mississippi River/Gulf of Mexico Watershed Nutrient Task Force has a goal to shrink the dead zone by reducing river nitrogen export levels by 45%. <br />To stimulate the industry growth necessary to enable reaching this target in only 17 years, the U.S. government introduced subsidies, which triggered a &lsquo;biofuels boom&rsquo;, which focused on corn-based ethanol because corn was easy to obtain and use for ethanol &lsquo;feedstock&rsquo;. The increased demand drove corn prices up, encouraging U.S. farmers to increase corn production. In 2007, for example, U.S. farmers planted more corn on more land than in the previous 60 years. <br />This result held for several land use/corn production scenarios that met the 2022 biofuels goal. In fact <a href="http://www.cheapcoachere.com/coach-crossbody-bags" target="_blank" class="postlink">Coach Crossbody outlet</a>, only a scenario of intense and probably unrealistic mitigation was able to meet both the Energy Policy ethanol target and Task Force nitrogen reduction target.</span></td> </tr> </table></td> </tr> <tr> <td colspan="2" height="1" class="spaceRow"><img src="http://picsrv.fora.pl/Aniseed/images/spacer.gif" alt="" width="1" height="1" /></td> </tr> </table>
fora.pl
- załóż własne forum dyskusyjne za darmo
Powered by
phpBB
© 2001, 2005 phpBB Group
Programy
Regulamin
