Artwork

เนื้อหาจัดทำโดย multimidiavillage เนื้อหาพอดแคสต์ทั้งหมด รวมถึงตอน กราฟิก และคำอธิบายพอดแคสต์ได้รับการอัปโหลดและจัดเตรียมโดย multimidiavillage หรือพันธมิตรแพลตฟอร์มพอดแคสต์โดยตรง หากคุณเชื่อว่ามีบุคคลอื่นใช้งานที่มีลิขสิทธิ์ของคุณโดยไม่ได้รับอนุญาต คุณสามารถปฏิบัติตามขั้นตอนที่อธิบายไว้ที่นี่ https://th.player.fm/legal
Player FM - แอป Podcast
ออฟไลน์ด้วยแอป Player FM !

Poluição por plásticos e aquecimento global

2:25
 
แบ่งปัน
 

Manage episode 334199124 series 3259842
เนื้อหาจัดทำโดย multimidiavillage เนื้อหาพอดแคสต์ทั้งหมด รวมถึงตอน กราฟิก และคำอธิบายพอดแคสต์ได้รับการอัปโหลดและจัดเตรียมโดย multimidiavillage หรือพันธมิตรแพลตฟอร์มพอดแคสต์โดยตรง หากคุณเชื่อว่ามีบุคคลอื่นใช้งานที่มีลิขสิทธิ์ของคุณโดยไม่ได้รับอนุญาต คุณสามารถปฏิบัติตามขั้นตอนที่อธิบายไว้ที่นี่ https://th.player.fm/legal

Plásticos feitos de polietileno, a matéria-prima das sacolas de supermercado, liberam metano e etileno durante o seu processo de decomposição no mar e no meio ambiente – mostrou um estudo recente. Uma vez expostos ao ar, boiando na superfície do oceano ou entulhando praias, a taxa de liberação desses gases é quase 80 vezes maior que quando submersos. A liberação de gases ganha ainda mais força quando o produto é quebrado em micropartículas. E o mais preocupante: uma vez expostas aos raios solares, o processo de emissão continua mesmo no escuro. Estudos preliminares estimam que há cerca de 150 milhões de toneladas de plástico no oceano. E a expectativa é que, até 2050, exista mais plástico nos mares do que peixes. Recolher todo esse material do oceano também impõe ainda mais desafios. Pesquisas recentes mostram que ainda não é possível reciclar o plástico coletado do mar, uma vez que sua exposição à radiação solar altera suas propriedades térmicas e mecânicas, tornando o processo inviável. É preciso mais investimentos em conscientização e educação ambiental, de uma mudança de pensamento. Um dos maiores problemas são as sacolas de supermercado, elas voam e vão muito longe. Isso é fácil de reduzir, pode trocar por papel, e não fica no meio ambiente. É uma questão de mostrar esse perigo para as pessoas, para sensibilizar. Não é mais uma questão da vida marinha, que é importante, mas também da nossa vida.

Plastics made from polyethylene, the raw material for supermarket bags, release methane and ethylene during their decomposition process at sea and in the environment - a recent study showed. Once exposed to the air, floating on the surface of the ocean or clogging beaches, the rate of release of these gases is almost 80 times higher than when submerged. The release of gases gains even more strength when the product is broken down into microparticles. And the most worrying: once exposed to sunlight, the emission process continues even in the dark. Preliminary studies estimate that there are about 150 million tonnes of plastic in the ocean. And the expectation is that, by 2050, there will be more plastic in the seas than fish. Collecting all this material from the ocean also poses even more challenges. Recent research shows that it is still not possible to recycle the plastic collected from the sea, since its exposure to solar radiation alters its thermal and mechanical properties, making the process unfeasible. More investment in environmental awareness and education is needed, a change in thinking. One of the biggest problems is supermarket bags, they fly and go very far. This is easy to reduce, you can exchange it for paper, and it is not in the environment. It is a matter of showing this danger to people, to raise awareness. It is no longer a question of marine life, which is important, but also of our life.

Texto (créditos): https://revistagalileu.globo.com/Ciencia/noticia/2018/08/plasticos-em-decomposicao-contribuem-com-o-aquecimento-global.html

Imagem (créditos): Emissão de gases por plásticos que estão no oceano ocorre conforme eles se decompõem (Foto: Pixabay/MonicaVolpin/CreativeCommons)

--- Send in a voice message: https://podcasters.spotify.com/pod/show/multimidiavillage/message
  continue reading

161 ตอน

Artwork
iconแบ่งปัน
 
Manage episode 334199124 series 3259842
เนื้อหาจัดทำโดย multimidiavillage เนื้อหาพอดแคสต์ทั้งหมด รวมถึงตอน กราฟิก และคำอธิบายพอดแคสต์ได้รับการอัปโหลดและจัดเตรียมโดย multimidiavillage หรือพันธมิตรแพลตฟอร์มพอดแคสต์โดยตรง หากคุณเชื่อว่ามีบุคคลอื่นใช้งานที่มีลิขสิทธิ์ของคุณโดยไม่ได้รับอนุญาต คุณสามารถปฏิบัติตามขั้นตอนที่อธิบายไว้ที่นี่ https://th.player.fm/legal

Plásticos feitos de polietileno, a matéria-prima das sacolas de supermercado, liberam metano e etileno durante o seu processo de decomposição no mar e no meio ambiente – mostrou um estudo recente. Uma vez expostos ao ar, boiando na superfície do oceano ou entulhando praias, a taxa de liberação desses gases é quase 80 vezes maior que quando submersos. A liberação de gases ganha ainda mais força quando o produto é quebrado em micropartículas. E o mais preocupante: uma vez expostas aos raios solares, o processo de emissão continua mesmo no escuro. Estudos preliminares estimam que há cerca de 150 milhões de toneladas de plástico no oceano. E a expectativa é que, até 2050, exista mais plástico nos mares do que peixes. Recolher todo esse material do oceano também impõe ainda mais desafios. Pesquisas recentes mostram que ainda não é possível reciclar o plástico coletado do mar, uma vez que sua exposição à radiação solar altera suas propriedades térmicas e mecânicas, tornando o processo inviável. É preciso mais investimentos em conscientização e educação ambiental, de uma mudança de pensamento. Um dos maiores problemas são as sacolas de supermercado, elas voam e vão muito longe. Isso é fácil de reduzir, pode trocar por papel, e não fica no meio ambiente. É uma questão de mostrar esse perigo para as pessoas, para sensibilizar. Não é mais uma questão da vida marinha, que é importante, mas também da nossa vida.

Plastics made from polyethylene, the raw material for supermarket bags, release methane and ethylene during their decomposition process at sea and in the environment - a recent study showed. Once exposed to the air, floating on the surface of the ocean or clogging beaches, the rate of release of these gases is almost 80 times higher than when submerged. The release of gases gains even more strength when the product is broken down into microparticles. And the most worrying: once exposed to sunlight, the emission process continues even in the dark. Preliminary studies estimate that there are about 150 million tonnes of plastic in the ocean. And the expectation is that, by 2050, there will be more plastic in the seas than fish. Collecting all this material from the ocean also poses even more challenges. Recent research shows that it is still not possible to recycle the plastic collected from the sea, since its exposure to solar radiation alters its thermal and mechanical properties, making the process unfeasible. More investment in environmental awareness and education is needed, a change in thinking. One of the biggest problems is supermarket bags, they fly and go very far. This is easy to reduce, you can exchange it for paper, and it is not in the environment. It is a matter of showing this danger to people, to raise awareness. It is no longer a question of marine life, which is important, but also of our life.

Texto (créditos): https://revistagalileu.globo.com/Ciencia/noticia/2018/08/plasticos-em-decomposicao-contribuem-com-o-aquecimento-global.html

Imagem (créditos): Emissão de gases por plásticos que estão no oceano ocorre conforme eles se decompõem (Foto: Pixabay/MonicaVolpin/CreativeCommons)

--- Send in a voice message: https://podcasters.spotify.com/pod/show/multimidiavillage/message
  continue reading

161 ตอน

ทุกตอน

×
 
Loading …

ขอต้อนรับสู่ Player FM!

Player FM กำลังหาเว็บ

 

คู่มืออ้างอิงด่วน