环境问题现已成为全球越来越多人关注的焦点,而空气更是我们人类及其他生物赖以生存的必需品。当空气被污染,我们的生活环境又会变成什么样子呢?正是在这个关键时刻,空中翱翔的鸽子摇身变成了人类信赖的环保斗士!想知道可爱的鸽子们是如何为环保做出贡献的吗?一起来看看吧! Environmental issues have now become the focus of a growing global concern, and air is a necessity for the survival of our humanity and other living things. When the air is polluted, our living environment will turn into what it is It is at this critical moment, the pigeons soaring in the air turned into a human trusted environmental campaigner! Want to know how cute pigeons do for environmental protection Contribute? Let’s have a look!