Helder & Renato 8º1
Autor: PROJETO VERDE BELÉM | Publicado: 2011-09-25T17:08:00-07:00

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ESCOLA MUNICIPAL DOMINGOS JOSÉ DINIZ COSTA BELÉMDISCIPLINA DE GEOGRAFIA&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; PROFESSORA: MARIA EMÍLIA&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; TURMA 801/ MANHÃALUNOS: HELDER RODOLFO DINIZ/ RENATO ALVES DO VALE
Ambientalismo
Desde o inicio do processo de industrialização mundial, começou um intenso processo de globalização, que por sua vez causa grandes impactos ao meio ambiente, ocasionado por imensos lançamentos de gases tóxicos a atmosfera terrestre, desmatamento, queimadas, criações de grandes lixos urbanos, criação de parques industriais, grande produção de esgoto industrial e doméstico entre outros pequenos fatores quando comparados a estes. Tais práticas citadas acima resultam principalmente no chamado efeito estufa.
O que é Efeito Estufa?
É um fenômeno ocasionado pela concentração de gases (como dióxido de carbono, óxido nitroso, metano e os clorofluorcarbonos - estes últimos resíduos de produtos industrializados) na atmosfera, formando uma camada que permite a passagem dos raios solares e que absorve grande parte do calor emitido pela superfície da Terra.Os clorofluorcarbonos (CFCs) produzidos pela indústria química são poderosos gases do efeito estufa. Eles também reagem com o ozônio troposférico, destruindo, dessa forma, a camada de ozônio.Alguns gases da atmosfera, principalmente o dióxido de carbono (CO2), funcionam como uma capa protetora que impede que o calor absorvido da irradiação solar escape para o espaço exterior, mantendo uma situação de equilíbrio térmico sobre o planeta, tanto durante o dia como noite. Sem o carbono na atmosfera, a superfície da Terra seria coberta de gelo.O efeito estufa na Terra é garantido pela presença do dióxido de carbono, vapor de água e outros gases raros. Esses gases são chamados raros porque constituem uma parcela muito pequena na composição atmosférica, formada em sua maior parte por nitrogênio (75%) e oxigênio (23%).
SOLUCÕES:
De acordo com o grupo seriam possíveis soluções para o problema:1)&nbsp; Acordos internacionais em relação a redução da quantidade de gases tóxicos omitidos à atmosfera.2)&nbsp;&nbsp;&nbsp; Reflorestamento mundial.3)&nbsp;&nbsp;&nbsp; Conscientização ecológica.4)&nbsp;&nbsp;&nbsp; Trocar as atuais fontes de energia poluidoras e não renováveis por outras fontes ecologicamente corretas.5)&nbsp;&nbsp;&nbsp; Aumento da fiscalização internacional.6)&nbsp;&nbsp;&nbsp; Criação de leis mais severas a respeito do ambientalismo.7)&nbsp;&nbsp;&nbsp; Tratamento adequado do esgoto e dos lixos criados pela sociedade.8)&nbsp;&nbsp;&nbsp; Criação de programas incentivadores à ecologia.9)&nbsp;&nbsp;&nbsp; Construções de imóveis sustentáveis (casas ecológicas).10) &nbsp;Uso consciente de energia elétrica.
Vídeo:
Veja os vídeos relacionados ao trabalho através dos links:http://www.youtube.com/watch?v=dGNzoMIew74http://www.youtube.com/watch?v=dWQUCwf-BMc&amp;feature=relatedhttp://www.youtube.com/watch?v=MLr2Ff1zFGY