Here are a few options for the WordPress post_tag description, tailored for “環境議題” (“Environmental Issues”) in Traditional Chinese, with varying levels of detail and focus:

**Option 1 (Concise & General):**

> 關注並討論與環境相關的所有議題，包括氣候變化、污染、生物多樣性等等。
> (Focusing on all environmental issues, including climate change, pollution, biodiversity, etc.)

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

> 這個標籤收錄關於環境保護、可持續發展、以及我們周圍世界所面臨挑戰的相關文章和內容。
> (This tag compiles articles and content about environmental protection, sustainable development, and the challenges facing our world.)

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

> 探索環境議題，並尋找實際可行的解決方案。 我們關注如何保護地球、支持綠色生活方式以及倡導環境變革。
> (Exploring environmental issues and finding practical solutions. We focus on how to protect the Earth, support green lifestyles, and advocate for environmental change.)

**Option 4 (More Formal & Educational):**

> 反映當今世界所面臨的各種環境挑戰。 涵蓋氣候變化、資源耗竭、生態系統退化等議題，並探討相關的科學研究、政策制定和公民參與。
> (Reflecting on the various environmental challenges facing the world today. Covering issues such as climate change, resource depletion, and ecosystem degradation, and exploring related scientific research, policy-making, and civic engagement.)

**Option 5 (Focusing on a specific audience):**

> 收集有關環境議題的文章，適合對環境保護有興趣的讀者。 涵蓋環境污染、可持續發展等議題，希望透過分享資訊，提升大家對環境議題的認識。
> (Collecting articles about environmental issues, suitable for readers interested in environmental protection. Covering issues such as environmental pollution and sustainable development, hoping to increase everyone’s understanding of environmental issues by sharing information.)

**Key Considerations for Choosing:**

* **Target audience:** Who are you trying to reach? Are they experts, general readers, or students?
* **Content of your blog:** What types of articles will be tagged with “環境議題”?
* **Your blog’s tone:** Is your blog formal or informal?
* **Keyword optimization (optional):** Consider including relevant keywords like “氣候變化” (climate change), “環境保護” (environmental protection), “可持續發展” (sustainable development) in the description.
* **Length:** Keep it concise and easy to understand. Usually, descriptions are best if they stay within the character limit for your WordPress setup.

When you’re setting the tag description in WordPress, you’ll usually find a field specifically for it. Choose the option best suited for your website and remember to tailor it to perfectly suit your content.