Here are a few options for a WordPress post tag description in Traditional Chinese for the title “減少碳足跡”, ranging from more concise to slightly more detailed:

**Option 1 (Concise):**

減少碳足跡相關主題，包括環保措施、可持續發展及應對氣候變遷。 (Reduces carbon footprint-related topics, including environmental measures, sustainable development, and tackling climate change.)

**Option 2 (Slightly More Detailed):**

關於減少碳足跡的文章與討論，分享如何透過生活方式改變、企業策略和政府政策，降低溫室氣體排放，保護環境。 (Articles and discussions about reducing carbon footprint, sharing how to reduce greenhouse gas emissions and protect the environment through lifestyle changes, business strategies, and government policies.)

**Option 3 (Emphasis on Action):**

積極參與減少碳足跡！這裡分享節能減碳的實用方法，讓您為環境盡一份心力，共建綠色未來。 (Actively participate in reducing your carbon footprint! Here we share practical ways to save energy and reduce emissions, allowing you to contribute to the environment and build a green future together.)

**Option 4 (Focus on Impact):**

探索減少碳足跡的意義與影響。了解我們如何透過日常選擇，對地球和未來產生正面影響，共同創造可持續發展的社會。 (Explore the meaning and impact of reducing your carbon footprint. Learn how we can positively impact the earth and the future through daily choices, and together, create a sustainable society.)

**Which one should you choose?**

* **Choose Option 1** if you need a brief and direct description.
* **Choose Option 2** if you want to provide more context and scope, mentioning solutions.
* **Choose Option 3** if you want to motivate readers to take action.
* **Choose Option 4** if you aim to highlight the *why* behind carbon footprint reduction.

Remember to consider your overall website content and target audience to pick the most suitable description. You can also experiment with a few different descriptions and adjust them over time.