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Join us in the Digital Cleanup Day movement from 1st of October 2021 to 20th March 2022

Join digital cleanup day 2022! Let’s take out our digital trash and save our environment! 加入2022年數位大掃除!讓我們拿出我們的數位垃圾,拯救我們的環境!

In the digital world, similar to the environment, there is a huge amount of trash.

Unnecessary emails, files, apps, duplicates of photos and videos are all digital waste.

This digital trash creates digital pollution that continues to consume energy even when we have forgotten it.

Digital trash sits in the backups on servers that provide us with cloud service and continue consuming electricity.

Each year the internet and its supporting systems produce 900 million tons of CO2, which is more than the annual output of the whole of Germany.

Some studies estimate that in a decade the internet network will consume 20 percent of the world’s total energy.

If we delete all unnecessary files, apps, photos and videos, we are not just saving a huge amount of CO2 but we are also extending the life of our gadgets, feel more balanced, and we take control over our lives, forge new digital habits, and we will be more efficient and satisfied.

Sounds like a win-win!


Be cool – don’t feed global warming with digital trash!


Cut down your CO2 share, join the Digital Cleanup Day movement,

from 1st of October 2021 to 20th March 2022!







全球網路每年產生 9 億噸二氧化碳,這超過了整個德國的年產量。一些研究估計,十年後全球網路將消耗世界總能源的 20%*。










Did you know? 你知道嗎?

  • If 70 million streaming subscribers were to lower the video quality of their streaming services from HD to Standard, there would be a monthly reduction in 3.5 million tons of CO2 – the equivalent of eliminating 6% of the total monthly coal consumption in the U.S 如果 7000 萬串流媒體用戶將其串流媒體服務的影片畫質從高清降低到標準,每月將減少 350 萬噸二氧化碳——相當於美國每月煤炭消耗總量的 6%
  • An employee who participates in 15 hours of online meetings with their camera turned on, created 9.4 kg CO2 a month. By turning off the video he would save the same amount of emissions that are created by charging a smartphone each night for over 3 years (1151 days) 一名員工在開啟鏡頭的情況下參與 15 小時的線上會議,每月會產生 9.4 公斤二氧化碳。透過關閉視訊,他將節省與每晚為智慧手機充電超過 3 年(1151 天)所產生的排放量相同的排放量
  • It takes more energy to mine for BitCoins than the whole of New Zealand consumes in a year. It is important to remember that mining BitCoin produces nothing but a few bytes of encrypted data. It consumes tremendous amounts of energy with computing without actually creating a product or a service of use. 開採比特幣所消耗的能源比紐西蘭一年消耗的能源還要多。重點是,挖掘比特幣只會產生幾個byte的加密數據。它在計算過程中消耗了大量能量,而沒有實際創建產品或使用服務。
  • With the energy you use for video streaming ( on average 2 hrs per day), you could commute up to 3000km or 2000 miles with an electric scooter a year. That is a transport budget of 8km or 5 miles per day. 以您用於影像串流的能源(平均每天 2 小時),您可以使用電動滑板車每年通勤 3000 公里或 2000 英里。這是每天 8 公里或 5 英里的交通預算。
  • Google uses 15616 MWh of energy each day, this is more than Hoover Dam produces and it would power a whole country with 1 million inhabitants for a day. Google 每天使用 15616 MWh 的能源,這比胡佛水壩生產的能源還多,它可以為一個擁有 100 萬居民的國家提供一天的電力。
  • Our limitless consumption of data today needs 3 times more energy than all the solar panels in the world can produce. Our internet craze works mostly on fossil fuels, so clicking, scrolling, and streaming is responsible for more than 870 million tonnes of CO2, adding more force to the deadly global warming trend.  我們對網路無止盡的消耗所需要的能量是世界上所有太陽能電池板所能產生的能量的 3 倍。我們的網路狂熱主要依賴化石燃料,因此點擊、滾動和串流傳輸產生了超過 8.7 億噸的二氧化碳,加劇了致命的全球變暖趨勢。
  • Each day 281 Billion emails whoosh around our planet. Refreshing, reading, and replying to our work emails takes more than 3 hours a day, 5 if you include personal email accounts. It can take more than 23% of our workday, more than 20 weeks a year. Organizing your emails, sending less of them, and using alternative ways of communication, like co-working spaces, would free that time, but also limit the ineffective practice of organizing work through emails.  每天有 2810 億封電子郵件在我們的星球上呼嘯而過。每天刷新、閱讀和回覆我們的工作電子郵件需要 3 個小時以上,如果包括個人電子郵件帳戶,則需要 5 個小時。它可能佔用我們工作日的 23% 以上,一年超過 20 週。整理您的電子郵件,減少發送郵件,並使用其他溝通方式(例如共同工作空間)可以騰出時間,但也可以限制通過電子郵件組織工作的低效做法。


How to do a digital cleanup? 如何進行數位清掃?

Guidelines For Individuals 個人指南

STEP 1  第一步


Remove all applications that you haven’t used for a while or used only a few times. Be honest and bold! Delete all those unnecessary forgotten old apps and games that you have downloaded, but not yet even really tried. You won’t start using them later either – for sure! They consume energy even when they are not in use and can consume monthly hundreds of megabytes of data for updates. 

Don’t forget to delete any user accounts (including emails) and all its data you created when you were 15 and haven’t accessed it for a decade. You will speed up your phone and increase the battery time – it is always worth it to have as few apps as necessary.

Review your photos and videos. By deleting the unnecessary and the duplicates, you can free up tens of gigabytes of valuable storage.


別忘了刪除您在 15 歲時創建且十年未登入的任何用戶帳戶(包括電子郵件)及其所有資料。您將加快手機速度並延長電池使用時間 - 擁有盡可能少的應用程式總是值得的。
查看您的照片和影片。透過刪除不必要的和重複的內容,您可以釋放數十 GB 的寶貴儲存空間。


STEP 2 第二步


Clean your PC and delete files that are duplicates or have become useless. Sort your photos, delete duplicates and the blurry ones. Go through the videos and delete watched or unnecessary files. Archive the important files. Be prepared to find really amazing things in your computer!

清理您的 PC 並刪除重複或無用的文件。對照片進行排序,刪除重複和模糊的照片。瀏覽影片並刪除觀看的或不需要的文件。歸檔重要文件。準備好在您的電腦中發現真正令人驚奇的東西!

STEP 3 第三步


Filter emails by the oldest one and archive them. UNSUBSCRIBE from newsletters you don’t read. Select long conversations, pick the newest one and DELETE everything else. Search for common names, addresses, and words to round up similar emails so you can deal with them as mass. Be brave and click the DELETE button.



STEP 4 第四步


Instead of sending emails, use more co-working places.Stop sending ‘ok’ and ‘thank you’ emails! Keep the important files in a cloud in one place so there is no need to keep the same file in every computer.  Think first before you backup. Create less “fast-content” and be more intentional about your videos and photos. Make sure you back-up only files that you will need and photos that you love. 

Small changes in your Internet habits such as turning off video during a virtual meeting, reducing the quality of streaming services, decreasing gaming time, limiting time on social media, and unsubscribing from newsletters and email lists can significantly reduce your environmental footprint!

Be creative and live light!




How to organize a digital cleanup?

Guidelines for organizations 給企業組織的規劃指南

Companies and organizations can make changes in everyday work flow that help reduce the ecological footprint of digital systems significantly. This requires a little time and willingness to make strategic decisions and implement simple changes. When you think of your workflow, you must evaluate what works and what doesn’t and how you can make the system work better for everyone.



Why should you care? 為什麼要關心?

  • By tackling your digital footprint issue, you reduce your organizations’ environmental load and create a sustainable workflow. 透過解決數位足跡問題,您可以減少公司的環境負荷並創建可持續的工作流程。

  • Too many systems or half-used solutions decrease efficiency. Organized and clear virtual offices help increase worker satisfaction. 太多的系統或使用一半的解決方案會降低效率。井然有序的虛擬辦公室有助於提高員工的滿意度。

  • Digital waste is expensive for you and the environment – each minute 240 million emails are sent of which 20% are never even opened. The space occupied by backups and unused files on servers cost actual dollars – they are billed to you monthly. 數位垃圾對您和環境而言代價高昂——全世界每分鐘發送 2.4 億封電子郵件,其中 20% 甚至從未被打開過。伺服器上的備份和未使用的文件佔用的空間實際上要花錢的——它們每一個月都會向您收費。

  • The less forgotten backups and unused digital systems you possess, the less time and resources are spent on surveillance and monitoring of logs.  Consequently, there are less security risks and less strain on servers. 您擁有的被遺忘的備份和未使用的數位系統越少,用於監視和監控的時間和資源就越少。因此,伺服器的安全風險和壓力較小。

  •  Organizing and taking part in Digital Cleanup Day increases team morale and unity. It is a team building event. Free, fun and has a both a good social and environmental impact. It is also 100% safe in terms of Covid-19 restrictions.  規劃和參與數位掃除日可以提高團隊士氣和團結。這是一個團隊建設活動。免費、有趣且具有良好的社會和環境影響。就Covid-19 限制而言,它也是 100% 安全的。

  • By inviting other organizations to join you in digital cleanups you help create awareness on the issue, and start the discussion in society on how we can solve the invisible problem of digital pollution. 通過邀請其他人與您一起進行數位大掃除,有助於提高對該問題的認識,並在社會上開始討論我們如何解決數位垃圾污染這個無形的問題。


How to reduce your organization's digital footprint? 如何減少您公司的數位足跡?

STEP 1  第一步


What is digital waste in your organization? Which digital procedures create an environmental footprint in your organization?

Digital waste could be anything from pointless copies, to forgotten backups to customer records kept for years just in case. But your digital footprint also increases by sending emails with or without files back and forth, using virtual workspaces irregularly, backing up large files on servers in real time, holding long meetings with videos streaming etc. A great way to start figuring this out is to make an overview of what is business critical, what kind of records are required to be kept by the law, and by evaluating the efficiency of your digital procedures.



STEP 2 第二步

Find out where your forgotten digital trash is: check your backups, e-mails, expired records and documents, what is kept on servers, and where large files are kept. 



STEP 3 第三步

Educate your staff about digital waste and organize a digital cleanup day with your staff, you can encourage them to clean in their personal and company devices. Organize a competition, or challenge your co-workers to participate. Get rid of all junk and keep what is business critical in cloud servers. Include your IT department in coming up with solutions that would cut down on wasteful digital practices. 

對您的員工進行有關數位廢物的教育,並與您的員工一起規劃數位大掃除,您可以鼓勵他們在個人和公司設備中進行清理。規劃比賽,或挑戰您的同事參與。擺脫所有垃圾並保留雲端伺服器中的關鍵業務。包括您的 IT 部門提出可以減少浪費的數位實踐的解決方案。


STEP 4 第四步

Automate deletion of expired files, organize virtual workspace in a way you would organize an office, have less and more effective video meetings, make sure you are using your virtual office effectively, educate your employees in digital practices, and give up systems that don’t serve you well.


We did it! So can you!

How do I know how much I deleated? 我怎麼知道我刪除了多少?


1. Check the current size of your mailbox. 檢查您電子信箱的當前大小。

Go to Outlook > File > Mailbox settings > write down the number of free GB  in your mailbox. Don’t miss this, otherwise you won’t know the results of your cleanup efforts!

轉到 Outlook > 文件 > 設定 > 記下電子信箱中的可用 GB 數。不要錯過這個,否則你不會知道你的清理工作的結果!

2. Filter emails by the oldest one you have, and collect them into one folder.  按您擁有的最舊的電子郵件過濾電子郵件,並將它們收集到一個文件夾中。

3. Search for common names, addresses, and words to round up similar e-mails so you can deal with them as mass. Be bold and click the DELETE button. 搜索常見的名稱、地址和詞來收集相似的電子郵件,以便您可以將它們作為群發進行處理。加粗並單擊 「刪除」 按鈕。

4. Select long conversations, pick the newest one and DELETE everything else. If that is also not relevant, dare to get rid of the last one, too. 選擇長對話,選擇最新的對話,然後刪除其他所有對話。如果那也無關緊要,也敢於擺脫最後一個。

5. Unsubscribefrom all newsletters that haven’t won your deeper attention. You won’t be reading them in future, for sure. 取消訂閱所有尚未引起您更深關注的時事通訊。你將來肯定不會閱讀它們。

6. FYI emails (for your information) – just DELETE! 僅供參考的電子郵件(供您參考)——刪除即可!

7. OK emails (chats with a large group of people, that you could do in other channels) – simply DELETE! 好的電子郵件(與一大群人聊天,您可以在其他管道中進行)– 只需刪除即可!

8. Block unwanted senders. Go to Home view > Junk > Block sender. 阻止不需要的發件人。轉到主頁視圖 > 垃圾郵件 > 阻止發件人。

9. Turn off email notifications from apps and social media. 關閉來自應用程式和社交媒體的電子郵件通知。

10. Delete old appointments from your online calendars. All those overdue appointments pile up in your calendar folder, and create digital waste. Make deleting them your weekly routine. 從您的線上日曆中刪除舊約會。所有這些逾期的約會都堆積在您的日曆中,並造成數位垃圾。讓刪除它們成為你的每週例行公事。


Congratulations! You really did a good job! 恭喜!你真的做得很好! 

Clean up mobile storage 清理行動裝置的儲存空間

1. Write down the current storage space left on your mobile phone 記下當前手機剩餘的儲存空間

  • Android phones: Menu > Settings 設定> Storage 儲存空間
  • iPhones: Settings 設定> General 一般> Storage 儲存空間

Don’t miss this, otherwise you won’t know your cleanup results! 不要錯過這個,否則你不會知道你的清理結果!


2. Dare to delete everything unnecessary 敢於刪除所有不必要的東西

Your phone should have at least 1 GB memory space free. Remove all applications that you haven’t used or used only a few times. Be honest and brave! Delete all those unnecessary, forgotten, old apps and games that you have downloaded, but never really used. You won’t start using them later either – for sure!

You can also delete your phone’s preinstalled applications, but make sure that you don’t remove system applications.

您的手機應至少有 1 GB 的可用儲存空間。刪除所有未使用或僅使用過幾次的應用程式。誠實和勇敢!刪除您下載但從未真正使用過的所有不必要的、遺忘的、舊的應用程式和遊戲。你以後也不會開始使用它們——一定的!

3. Care about your cache 關心你的緩存

It’s worth clearing your phone’s cache every now and then. 不時清除手機的暫存資料是值得的。

  • On Android phones, go to Settings > Tap the Storage heading > Find the application you want to clear > Clear cache  在 Android 手機上,轉到設置 > 點按存儲標題 > 找到要清除的應用程序 > 清除緩存
  • On iPhones, go Settings > Safari > Clear History and Website Data > Clear History and Data  在 iPhone 上,轉到設置 > Safari > 清除歷史記錄和網站數據 > 清除歷史記錄和資料

Check also, how much space do your apps take, go Settings > General > Usage (iPhone). You should delete the heaviest apps and reinstall them again. You will be surprised how much more space this gives you.



4. Store your important documents in the cloud and photos and videos on external hard drives. 將您的重要文件儲存在雲端,將照片和照片儲存在外接硬碟上。

Do you really need ten versions of the same picture, or could you save only the best one? It’s typical to keep your most valuable memories on your phone ONLY and that is a huge risk to lose them all at once! So, store your personal photos and videos on external hard drives, and your important documents in the cloud services, such as iCloud, Dropbox or Microsoft OneDrive.

On external hard drives, your pics and videos are safe without taking up space on your phone. External storage is an inexpensive way to store your memories without worrying about losing them. If you haven’t done this before, now it’s time to start!

你真的需要同一張圖片的十個版本,還是只保存最好的一個?通常只將您最寶貴的記憶保存在手機上,同時丟失它們是一個巨大的風險!因此,將您的個人照片和影片儲存在外接硬碟上,並將您的重要文檔儲存在雲服務中,例如 iCloud、Dropbox 或 Microsoft OneDrive。

5. Go back to the original storage size of your phone 返回到手機的原始儲存大小

see the number you wrote down in the beginning, then check the current size and do the calculations – how many GBs did you manage to delete?

查看您在開始時記下的數字,然後檢查當前大小並進行計算 - 您設法刪除了多少 GB?


6. Finally 最後

go back to our campaign site and fill out the number of deleted gigabytes. If you want to continue cleaning up, you can join us again and fill out the new numbers.

查看您在開始時記下的數字,然後檢查當前大小並進行計算 - 您設法刪除了多少 GB?

Congratulations! You really did a good job! 恭喜!你真的做得很好!

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