The Urban Green

簡要總結

本影片探討了全球城市應對環境挑戰,實現可持續發展的創新方法。影片重點介紹了溫哥華、首爾、哥德堡和巴黎等城市在可再生能源、綠色建築、可持續交通和公眾參與方面的舉措。影片強調城市在應對氣候變化中的關鍵作用,以及政府、企業和市民共同努力的重要性,以實現人與自然和諧共生的未來。

  • 城市在應對氣候變化中扮演關鍵角色。
  • 可再生能源、綠色建築和可持續交通是關鍵解決方案。
  • 公眾參與和政府支持對於實現可持續發展至關重要。

引言

全球社區正面臨嚴峻的環境挑戰,包括不可逆轉的氣候變化。這些挑戰多源於城市和資源密集型的都市生活方式。許多城市正在開發和實施具體的解決方案,以創建更宜居和可持續的城市,並激發廣泛的變革,引領我們走向人與自然和諧共生的未來。

城市可持續發展的重要性

未來30年,全球城市人口預計將翻倍,城市基礎設施也將隨之增長。這是一個關鍵的機會窗口,城市投資決策將決定人們是陷入資源低效和依賴化石燃料的生活方式,還是能夠生活在更具吸引力、健康和可持續的城市中。未來30年,全球GDP的五倍以上將投資於城市基礎設施及其使用,因此以可持續和具彈性的方式進行這些投資至關重要。城市需要共同努力,實現低碳化,從化石燃料轉向可再生能源,並增強城市生態系統和生物多樣性,以支持可持續發展。

溫哥華:100%可再生能源城市

溫哥華制定了一項雄心勃勃的氣候行動計劃,目標是到2050年實現100%可再生能源供應。該計劃側重於建設充滿活力和包容性的社區,滿足後代的需求。溫哥華透過與社會各界的廣泛合作,制定了包括水資源、食物、清潔空氣、綠色商業、綠色就業、減少碳排放、減少消費和零廢棄物在內的十個目標。市民和組織的積極參與,促成了超過150項城市政策的創新舉措,包括城市中的大型農場、廢物回收和綠色經濟發展。溫哥華的目標是實現所有能源來源的100%可再生,儘管交通運輸方面仍面臨挑戰,但他們正在積極規劃,以淘汰城市中的化石燃料。

可再生能源的轉型

可再生能源技術被認為具有顛覆性,因為它們與傳統技術截然不同,且對消費者和社會更有利。電動汽車、太陽能和風能等技術已趨成熟,其轉型速度將遠超預期。這些技術對消費者更有利,且價格合理,一旦意識提高,便會呈指數級增長。溫哥華的太陽能裝置案例表明,即使在最初被認為不可行的地區,只要有需求,可再生能源也能成功推廣。研究顯示,電動汽車的需求潛力巨大,但供應不足。加州制定了電動汽車銷售標準,如果其他州和地區也能採納類似政策,將創造巨大的市場需求,推動汽車產業轉型。

可持續建築:溫哥華會議中心

溫哥華會議中心西翼是一個卓越的例子,展示了如何設計建築以最大限度地減少對環境的影響。它擁有加拿大最大的六英畝綠色屋頂,以及先進的黑水回收處理廠和海水供暖製冷系統。綠色屋頂種植了超過40萬株不列顛哥倫比亞省的本土植物,與溫哥華市中心的其他綠地相連,體現了建築師的環保願景。

首爾:可持續發展的決心

首爾透過大膽的綠色倡議,實現了顯著的積極轉變。該市致力於提高可再生能源的使用率,並鼓勵市民參與環保行動。首爾擁有超過一千萬市民,因此需要提供更多的環保交通方式,並為建築物提供環保解決方案。最重要的是,要動員市民參與到這個過程中。首爾鼓勵市民提出自己的想法和行動,並大力發展地鐵和自行車等環保公共交通工具。

首爾的能源自給自足

首爾的目標是到2020年實現20%的電力自給自足,可再生能源在其中扮演重要角色。水淨化廠的過濾水庫頂部安裝了太陽能板,由於水庫的冷卻效應,太陽能板的效率更高。首爾的平均發電時數為每天3.1至3.2小時,但這裡 благодаря 冷卻效應,發電時數高於平均水平,達到每天3.7至3.8小時。首爾市政府發起了「減少一座核電廠」的運動,這個太陽能發電廠為該運動做出了貢獻。

被動式設計和綠色建築

除了生產可再生能源外,降低城市的整體能源消耗也很重要,方法是建造消耗極少或不消耗能源的建築物和房屋。其中一種方法是使用被動式設計。在任何綠色建築中,首先要做的就是採用被動式設計,最大限度地利用能源。被動式設計意味著使用大量的隔熱材料、特殊的玻璃和特殊的幕牆,使建築外殼達到最佳狀態,防止能量從牆壁洩漏。讓自然與你合作,而不是試圖與自然對抗,讓自然為我們降溫和加熱。被動式設計技術使我們能夠利用自然來滿足我們的需求。這棟建築的一大特色是令人難以置信的綠色牆壁,它將自然帶入我們的城市環境。屋頂上還有太陽能板,這棟建築正在產生大量的可再生能源,為建築提供電力。

哥德堡:創新氣候策略

瑞典哥德堡因其創新的氣候策略、綠色債券的引入以及減少居民消費碳排放的努力而受到認可。成功的另一個關鍵是與學術界和金融部門的合作。哥德堡在環境工作,特別是氣候工作方面的成功,歸功於其良好的合作。例如,哥德堡與 Volvo 等公司合作,共同開發了一款全新的電動巴士。

消費基礎碳足跡

哥德堡在考慮其對環境的影響時,會考慮居民消費基礎的碳足跡。消費基礎碳足跡意味著,在計算城市居民的排放量時,不僅要考慮城市邊界內的排放量,還要考慮在其他國家和地區因消費產品和服務而產生的排放量。透過這種方式,可以獲得關於需要關注的氣候問題的新視角。傳統上,城市和國家更關注交通運輸、能源生產和工業,但透過消費基礎碳足跡,也需要關注食物消費、航空旅行和其他消費。

綠色債券

2008年,世界銀行推出了綠色債券,作為保證資金投資於可持續項目的工具。哥德堡是世界上第一個發行此類債券的城市。綠色債券的基石是其簡潔性,其本質是專款專用。透過發行債券,哥德堡為投資者提供了投資特定項目的機會,使他們清楚地知道資金的去向。到目前為止,哥德堡已投資於電動汽車、沼氣生產和水淨化過濾器。當將金融和可持續發展這兩種強大的力量結合在一起時,就能創造出令人興奮的成果。

可持續生活斯堪的納維亞

有時,城市雖有實現可持續發展的政治意願,但缺乏財政資源。瑞典公司 Sustainable Lifestyle Scandinavia 提供了一種彌合私營和公共部門之間差距的方法。未來幾十年,世界將面臨近30億人遷移到城市地區的巨大挑戰,這意味著我們必須採取可持續的方法來建設城市環境。該公司發現,政治意願是存在的,但缺乏技術、知識和資本,因此他們致力於彌合這些差距。

中國的示範項目

這個概念已經被證明是成功的,目前正在中國的涇陽縣實施,私營資本正在推動該縣的可持續擴張。第一步是將其作為一個示範項目,以獲得政府的支持。下一步是制定總體規劃和基礎設施設計,然後吸引融資和資本,最後是實施。

巴黎:可持續交通和城市綠化

巴黎是聯合國氣候變化大會的主辦城市,因其致力於創建更可持續的城市而受到認可,重點是可持續交通、可再生能源和城市自然環境的恢復。巴黎面臨嚴重的空氣污染問題,這對健康構成威脅。因此,巴黎決定採取多項措施,一方面鼓勵人們轉向可持續交通,另一方面逐步禁止污染最嚴重的汽車進入市區。

巴黎的電動汽車推廣

為了降低污染,巴黎正在補貼計程車和個人購買清潔電動汽車,以及購買電動自行車。購買電動自行車可獲得巴黎市政府補貼,補貼金額為總價的四分之一。巴黎正在大力推廣電動汽車,並已初見成效。巴黎正在推廣電動汽車,增加對可再生能源的投資,並實施建築改造計劃。

巴黎的可持續發展行動網絡

巴黎將在未來幾年採取多項行動,以實施其氣候行動計劃。目前有三大重點:發展城市中的綠色能源、加強建築改造計劃以減少溫室氣體排放並解決能源貧困問題。巴黎創建了可持續發展行動網絡,匯集了個人、協會和新創公司,他們承諾應對氣候問題。這個網絡幫助他們分享經驗、發展壯大,並提高在巴黎市民中的知名度。目前,這個網絡聚集了近10%的巴黎人口。

南非:應對多重挑戰

南非的開普敦和茨瓦內因其對可持續發展的承諾而受到讚揚,同時也在應對貧困和社會不平等問題。茨瓦內市和整個南非面臨失業、貧困和不平等的三重挑戰。因此,培養人們參與主流經濟的能力非常重要。作為公民,我們都有責任盡我們所能保護地球免受氣候變化的有害影響。我們必須轉變對傳統能源的依賴,並尋求更多清潔能源。

利用太陽能解決住房問題

南非擁有充足的陽光,因此必須利用這一資源。這就是為什麼他們正在引入太陽能。他們還希望利用太陽能解決城市的住房問題。在擴建和向窮人提供更多免費住房時,屋頂板的設計必須能夠安裝太陽能板。透過這種方式,既能解決當前和眼前的問題,也能解決未來的能源結構問題。

自上而下和自下而上的方法

城市需要國家政治家和強有力的政策支持,才能充分發揮其潛力並實現雄心勃勃的目標。自上而下和自下而上的方法相結合是絕對必要的,這需要真正 melibatkan 城市居民的共同努力。將能源系統轉變為可再生能源在技術上是可行的,但我們必須迅速行動。我們必須在經濟框架和立法框架方面努力,我們必須告知人們,我們必須在各個層面採取行動。如果我們這樣做,我們就能在2050年實現100%可再生能源的世界。城市領導人必須主動接觸個人,使他們成為合作夥伴。解決方案不能自上而下地強加,人們必須接受解決方案,並感到自己是新世界的一部分。

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0:06 [Music] communities around the world are currently faced with a number of large-scale environmental challenges including dangerous irreversible climate change many of these challenges stem from cities and are resource intensive urban lifestyles fortunately an array of Concrete Solutions to these challenges are already being developed and implemented in cities around the globe so we set off on an inspirational journey to explore the most innovative ideas Technologies and initiatives being used by cities today as they strive to create more livable and sustainable cities and with

0:54 the potential to stimulate widescale change which would set us on the path towards a one Planet future where humans live in harmony with nature the struggle for a sustainable future on this planet will be one or lost in our cities in the next 30 years we expect a doubling of the global Urban population and with that a doubling of the global Urban Urban infrastructure that is a very short window of opportunity to get things right so Urban investment decisions taken today will determine whether people will be locked

1:41 into resource inefficient and fossil fuel dependent infrastructures and Lifestyles or if they will enable cities to become places where we can live attractive and healthy and sustainable lives over the next 30 Years more than five times the global GDP will be invested in urban infrastructure and its use so it's critical that those Investments are made in a sustainable and resilient way a number of actions that cities have to take and actually take together is first of all to try to become low carbon to shift from fossil fuel towards renewable energy secondly to become resilient we are going to face

2:28 the impacts of climate change and they will beit different from one part in the world to the other part we have to look thirdly into how can our existing ecosystems our biodiversity we have in urban areas how can that support us in our sustainability well the urban challenge in the world is is tremendous I mean we'll soon have 75% of the world population living in cities and I would argue that the number one challenge for cities is actually not inside the city it's to recognize that it has to be sustainable in its entire inflows and outflows of energy of water of food of all materials so to see itself like a part of a wider ecosystem so that you plan every urban area for every citizen that it keeps itself within a circular

3:14 economic model in terms of resources in and out and the second most important is to build resilient cities so how are leading green cities around the world responding to this enormous challenge one of the most ambitious climate action plans has been adopted by the city of Vancouver whose goal is to run the city on 100% renewable energy by [Music] 2050 Vancouver's plan focuses on vibrant and inclusive neighborhoods and creating a city that meets the needs of generations to come they intend to achieve this by working with a broad range of stakeholders throughout society when I first came campaign for mayor in

4:01 2008 one of my key priorities was to make Vancouver the world's greenest city by 2020 so we put together an action plan worked with citizens and businesses and neighborhoods uh put together 10 targets uh in water food Clean Air U green business green jobs reducing our carbon reducing our consumption and uh zero waste [Music] at the beginning we were worried this was too much for people like that they wouldn't be able to see a point of entry into it and we were totally wrong um we've had over 35,000 residents 180 organizations who engaged in writing our plan tens of thousands of residents

4:46 who've been involved in implementing cuz when they write the plan they own the [Music] plan and as a result we've had over 150 separate City policy initiatives that ra from uh big farms in the middle of a dense City like Vancouver uh Waste Recovery that we've had we've had technology that we're doing um green economy we've raised our green jobs by 19% we've reduced our water usage by 18% uh greenhouse gas emissions are way down cuz many more people are biking and walking and taking Transit um but it's really The Innovation is how you marry a government to the residents to the businesses to the different Civil Society groups and make it a collective effort [Music]

5:34 creating a fossil fuel-free city is possible but requires a shift to Green energy in all areas our new goal is to be 100% renewable in the city of Vancouver with all of our energy sources and it will be a challenge with transportation in particular we don't know when we will have uh electric vehicles for the whole city we're waiting on uh the industry side to to get a clear sense of what year that's possible we're planning out the timeline right now basically making decisions to eliminate fossil fuels from our city many experts today refer to Renewable Energy Technologies as disruptive in the sense that they're radically different from conventional Technologies and are so much better for consumers and society

6:21 that they will very quickly disrupt current paradigms once the technology is ripe they happen very quickly and I think uh electric cars and solar energy and wind energy they're ripe a lot of people think they have these forecasts for you know 2040 we're having just a bit more percentage of these I think the transformation is going to happen so quickly that most of these forecasts are going to be quite short you know uh quite often because these are disruptive Technologies they're better Technologies for the consumers and we've crossed the price points where they make sense so once that happens it's basically a matter of awareness getting around Word of Mouth the understanding the experience and as that grows it grows exponentially and we're going to see a rapid I think transformation you know comparable to the Industrial Revolution

7:08 or such so this is a solar energy installation here in Vancouver British Columbia in fact when we first started 10 years ago people told us we couldn't do this that it didn't make sense here but we recognized that there were some people that wanted to install solar that wanted to do something Leading Edge that wanted to do something to reduce their environmental footprint um so we started with these panels uh this system uh since then uh the installation growth has been about 40% per year uh so in fact it could be done here there was a demand people want to see more renewable energy installed locally the research that we're doing is looking at the transportation sector because that's a a huge part of our greenhouse gas emissions and about how we can connect our transportation system to Renewables

7:55 and we're finding that um really Electric Mobility is an essential part of meeting our deep greenhouse gas emissions reduction so to have that 80% reduction by 2050 we need to have a big Fleet of electric vehicles uh really almost in every city around the world and the research we're doing founds that there's a lot of potential demand there's a lot of consumers out there who be willing to pay extra for some type of plug-in hybrid vehicle or pure electric vehicle but currently they they can't do that because it's not available in the model they want or in the variety or color or whatever it is that they want and so what we're finding is there's some areas that are showing us good examples of policy that can trigger that change and California has the best example uh that we

8:40 found California right now is leading the standards they've said that 10% of the vehicles sold in California have to be electric vehicles they have committed to an 80% reduction in greenhouse gases if other states walk Washington Oregon British Columbia Ontario Quebec and nine eastern states were to adopt that kind of California policy we would create a demand for electric vehicles that would make them very commonplace and we would get to the point where using the weight of states and the weight of cities we could begin to transform our our emissions and that's where we need to go

9:27 because we cannot wait for national government to take us there anymore and once people understand that an electric vehicle is actually cheaper it saves the money all of a sudden that will turn the market in in a massive way like Transportation housing is also a major challenge in the aim of creating sustainable cities the Vancouver Convention Center is a prime example of how buildings can be designed to minimize environmental impacts we're here at the Vancouver Convention Center's West building which opened in April 2009 and it's actually one of the greatest convention facilities in the world and just to give you a few examples we have really visible sustainable features such as our 6 acre

10:14 living roof which is the largest in Canada we have um a very sophisticated um blackwat recycling treatment plant in house as well as um we utilize sea waterer Heating and Cooling because we're right on the Harbor here at the Vancouver Convention Center living roof this is 6 acres and it's actually one of the 10 largest green roofs in the world so what makes this green roof really unique is the fact that we've chosen plants that are all indigenous to British Columbia so we've actually planted over 400,000 plants and grasses on top of this area it really connects to other green spaces here in downtown Vancouver so if you're looking at downtown Vancouver from an aerial perspective you're going to see that this space connects to the park next door and it connects to Stanley Park and it really

11:00 was part of the vision of our [Music] Architects so the mega City and capital of South Korea has seen a remarkable positive change thanks to Courageous green initiatives the city has been recognized for its determination to ramp up the use of renewable energy and building citizen [Music] engagement there may be many diverse options and policies to combat the

11:47 climate change issues the city like so has more than 10 million uh citizens so we should provide more environmental transportations and also so bring solutions to the uh buildings which is more environmental but most important thing is to mobilize the citizens engagement and participation in this process during our development period there are too many roads and too many cars and citizens accustomed to using cars so instead of it we should build

12:34 the more ecofriendly public transportation such as Subway or bikes so uh I'm really encouraged the citizens to have their own ideas and actions [Music] an impressive initiative by the city of soul is its goal to achieve 20% electricity self-reliance by 2020 obviously renewable energy plays an important role in this [Music]

13:21 transition so the solar panners here are installed on top of a filtering reservoir of the water purification plant that uh filtering Reservoir has a cooling effect so the solar panel become more efficient so the average uh Power Generation hours in so is 3.1 or 3.2 hours per day but here thanks to that cooling effect the figure is higher than the average which is 3.7 or 8 hours per day so Metropolitan government has this campaign of one less nuclear power plant and and this uh PV plant contribute to the campaign so we hope that this type of plant or distributed and expanded

14:09 around the soul [Music] City along with renewable energy production lowering a city's overall energy consumption by constructing buildings and houses that consume very little or no energy is key one approach is to use passive design in any Green Building the first thing we have to do is work on passive design maximizing the energy that we can get from passive design passive design means we use a lot of insulation we use special glass and special curtain walls to make the envelope optimal so that the energy does not leak through the walls let nature

14:56 work with you instead of trying to work against against nature let nature cool us and heat us passive design techniques allow us to do that to tap the nature to provide us with our needs one of the great features of this um building is are these incredible green Walls it brings nature into our Urban environment and some scientist say that when we see green it just helps us feel good and relieve our stress on the whole rooftop there's um solar panels so this building is generating a lot of um renewable energy to provide electricity to this

15:57 building gothenberg in Sweden has been recognized for its innovative climate strategies the introduction of green bonds and for its work to decrease residents consumption-based carbon emissions another key to success is cooperation with Academia and the financial sector I think the reason for the success uh story about gburg and the environmental work and especially climate work is that we have been good at cooperation and one one example for us is like when we together with AB Volvo and others uh built the new completely new electric bus a bus Which didn't exist but we decided we want that bus and the city plant in in their way

16:44 Volvo plant of course with creating the bus and the bus was there after less than 2 years and now you can see the light green bus going up and down uh the streets of gothenberg gothamberg is a leading City when it comes to looking at the larger picture for example taking its resident consumption-based carbon footprint into account when considering how they impact the environment a consumption based carbon footprint means that when we calculate the emissions in the city from the citizens we not only look at the emissions that are are emitted within the city's borders we also take into account our consumption of products and services that causes emissions in other countries and other parts of SW

17:29 by doing so we also get New Perspectives on which uh uh climate issues that we have to focus on normally when we have a geographical perspective that is the traditional way in cies and and countries there's a lot of focus on transport energy production and Industry and that's important but with the consumption based carbon Footprints we also got to focus on the consumption of food uh the consumption on air travel and other kind of consumption [Music] in 2008 green bonds was launched by the World Bank as a tool to guarantee that money is invested in sustainable projects gothamberg was the first city in the world to issue such

18:14 bonds I think the Cornerstone for for green bonds is the Simplicity the essence of the green bond is that is earmarked money in that way when we issue a bond to offer the investors the opportunity to invest in specific projects so they know exactly where their money money is going so far we have invested in electric cars biog gas production and also in water purification filter when you take those two extremely strong forces finance and sustainability and make them move forward together you create something really exciting actually sometimes there's a political will for sustainable change but the city lacks the financial resources to see it through one such example of how to help bridge the gap between private and

19:01 public sectors is the Swedish company sustainable lifestyle Scandinavia the world is facing a huge challenge in coming decades with close to 3 billion people moving into urban districts which means that we we have to take on a sustainable approach in order to build the urban environments and there we saw that the political will is there but there is a lack of knowhow knowledge and capital and that's where we in sustainable Liv Scandinavia bridge that [Music] Gap the concept has already been proven successful and is now being implemented in the chongyang county in China where private capital is fueling the sustainable expansion of the

19:57 city fore fore the first step is making it a demonstration project to secure governmental support next step is making

20:45 the master planning and infrastructure design and then comes attracting the finance the capital and then final step is implementation [Music] the City of Paris host of The United Nations conference on climate change has been recognized for its huge commitment to create a more sustainable City by focusing on sustainable Mobility renewable energy and the reintroduction of nature in the city

21:41 [Music] we have now in Paris a big issue about hair pollution this is big trouble for health as well so we have decided to develop many measure on one hand we give incentive to people that they shift to uh sustainable mobility and on the other hand we have a special program that step by step is going to forbid the most polluted cars within the City by 2020 that just like the cleanest one can circulate it in the city to lower lower that pollution we are subsidizing uh for taxis and individuals the purchase of uh clean electric vehicles also the buying of um electric bicycles if you buy an electric bicycle

22:28 uh you get a subsidy of of a Fourth of the total price from the city of Paris so we are really pushing very hard on electric vehicles it's one of our priorities and now we can see the result that par are promoting the electric vehicles increasing investments in renewable energy and retrofit programs is a clear priority for Paris as is their sustainable development Action Network in Paris we're going to have many action in the next years to implement our climate action plan but I would say we have three big issues right now it's to develop green energies in the city it's also to strengthens our retrofit plan to uh mitigate G emission but also to tackle energy poverty we

23:14 have in Paris created what we call the sustainable development action networks and it gather individuals Association but also startups that have make commitments to face climate issues and instead of being alone in that in that fight we are gathering them helping them to share experiences to go to grow bigger and also to be more known from the Paris population and this network now is gathering nearly 10% of the Paris population two South African cities Cape Town and Shuan have both been praised for their commitments to sustainable

24:00 development while simultaneously battling challenges such as poverty and social inequality in the city of T and in South Africa in general we've got we are faced with triple challenges that of unemployment poverty and inequality so it's important that you are able to skill people to participate in the mainstream economy we all have a responsibility as Citizens to do what we can to protect the planet from the harmful effects of climate change and it is an imperative that we see a shift from our Reliance on traditional energy sources and look to as many cleaner energy sources as possible one of our

24:46 natural advantages is the number of Sundays so we must exploit that resource and that's why we're introducing solar powered energy but we also want to use it to resolve the housing question in our city so as we expand and give more free houses to the poor we the roof panels must be designed in a manner that we are able to put the solar panels so in this way you are resolving both an existing and immediate question but also a future question with regards to your energy mix and that's how we want to use solar H going forward it's clear that cities need the support of national politicians and strong policies in order to achieve their real potential and ambitious goals

25:34 a combination of both a top down and bottom up approach is absolutely necessary and Demands a common effort that truly involves City residents changing our Energy System to renewable energies is possible technically possible but we have to move very fast the economical framework the legislative framework work we have to inform people we have to make actions on all level I myself on my roof and everyone else in his City in his municipality and in his region and if we do that then we can reach a 100% renewable World in 20150 leaders in a city do have to approach individuals to make them

26:21 Partners it cannot be done toed down people have to embrace Solutions and feel that they are part of of a new world [Music]

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