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海洋是生命的搖籃，為地球孕育出無數珍貴生物；但人類將海洋變成「垃圾崗」，不斷拋棄垃圾入海洋。海洋中充斥塑膠、廢紙甚至有毒物質，令海洋生物以至整個生態系統受到不能逆轉的破壞。
近年，不少生產商開始動腦筋，從海洋垃圾中找出有用物料，轉化為商品原料，繼早前有運動品牌利用被人非法遺棄在海洋的漁網製作波鞋，有床上用品公司去年將1.05億個塑料瓶改造成床褥，希望減少海洋中的塑膠垃圾。
製造商將瓶子壓成纖維，再製成床褥，每張床褥約使用150個膠瓶。製造商正準備擴大生產量。
該公司還推出計劃，鼓勵客人購買新旳環保床墊褥，客人可以舊床裖換購新床裖，公司同時捐款給關注海洋保護團體，希望減少世界海洋污染。
據估計，每年有1200萬噸塑料垃圾被傾倒入海洋。而各地科學家也警告污染的海洋對人類構成極大危險，因為垃圾進入海洋後，不單海洋生物的健康生命受到威脅，垃圾中的毒素也隨著進入生態系統而危人類生命。
全球化和都市化令不少地方的生活模式和飲食習慣都趨向西化。一項新近的研究發現，東非鄉村居民將傳統膳食轉為西方飲食，令免疫系統和新陳代謝變差。相反，飲食西化的城鎮居民改吃以蔬食為主的傳統地道膳食，短短兩星期可見改善健康的效果。
西班牙西北部的自治區加利西亞（Galicia）經常受到野火威脅，但當地的巴羅（Barro）鎮在五、六年前開始卻不再出現這個問題，原因之一是引入了野馬，吃掉易燃的灌木叢，形成天然防火帶。