The use of an architectural style cannot be said to start or finish on a specific date. Neither is it possible to say exactly what characterizes a particular movement. But the origins of what are now generally known as modern architecture can be traced back to the social and technological changes of the 18th and 19th centuries. Instead of using timber, stone and traditional building techniques, architects began to explore ways of creating buildings by using the latest technology and materials such as steel, glass and concrete strengthened steel bars, known as reinforced concrete. Technological advances also helped bring about the decline of rural industries and an increase in urban populations as people moved to the towns to work in the new factories. Such rapid and uncontrolled growth helped to turn parts of cities into slums.

Unless otherwise determined by the company in a general meeting or a resolution by written means, any original shares for the time being unissued and not allotted and any new shares from time to be created shall, before they are issued, be offered to the Member in proportion as nearly as possible, to the number of shares held by them. The offer shall be made by notice specifying the number of shares offered, and time limit within which the offer, if not accepted, will be deemed to be declined, and after the expiration of such time or on the receipt of an intimation from the person to whom the offer is made that the declines to accept the shares offered, the Directors may, subject to these Articles, dispose of the same in such manner as they think most beneficial to the Company. The Directors may, in like manner dispose of any such new or original shares as stated above, which, by reason of the proportion borne by them to the number of persons entitled to such offer as stated above or by reason of any other difficulty in apportioning the same, cannot in the opinion of the Directors, be conveniently offered under this Article.

一、“縫一個購物袋給媽媽”，在市內各小學校開啟此項活動，讓孩子們親自給媽媽縫制購物袋，鼓勵家長使用。孩子們的親手操作可以讓全家人參與，從娃娃開始推廣環保概念，并以這種親子行為帶動起成年人的環保理念。

二、“誰有最炫購物袋”，可由商場協作，銷售空白紙制購物袋，讓各個年齡的孩子（也可以是成年人）在上面作畫，并將照片在商場等公開場所展出。此活動參與性與趣味性皆具備，也可延展成為一項創意比賽，喚起大眾的環保意識。

三、“百變購物袋”，針對現在購物袋較為簡陋的設計，向中學以上的學生推出這項比賽，增加購物袋的使用功能，讓它的設計更為方便與合理，以提升對人們對購物袋的使用興趣。

以上三項活動可根據年齡層次設立不同比賽規則與獎勵機制，同時，作為此類活動的后續，可在各媒體聯合發起“你在與孩子一同環保嗎？”活動，在街頭尋找使用自己孩子制作或繪畫的環保袋的人士，對其進行宣傳，掀起全家共同環保的熱潮，擴大社會影響面。

自然因子與人類活動是氣候變化的兩大影響因素。多年來世界氣象組織相繼發表的相關報告指出，人類對全球氣候變暖的貢獻已經獲得越來越充分和肯定的證據。大范圍的森林砍伐、草原荒漠化等對氣候變暖的影響非常顯著。城市的尺度盡管要小得多，但由于其承載大量的人類活動，產生和排放出數量巨大的溫室氣體。因此，針對不同尺度、從不同的視角研究人類對環境的影響，同樣具有重要意義。

上世紀50年代以來我國各大城市都擴大了6倍以上[1]，戴昌達等[2]使用Landsat/TM圖象研究了1984～1992年北京的城市擴展變化。人類的城市活動改變了局部氣候，使得生態環境惡化。19世紀初期氣候學家發現了城市熱島（Urban Heat Island，UHI）現象[3]。UHI與城市的規模密切相關，是城市氣候的主要特征之一，是城市化對氣候影響的最典型的表現，是由下墊面狀況、城市人口密度、地理位置、氣候等多種因素綜合作用的結果。