Protect the environment to save our earth.

保护环境，拯救地球。

Reduce waste to protect our environment.

减少垃圾，保护环境。

We are using up our natural resources and at the same time polluting our environment with dangerous chemicals. If we continue to do this, life on earth cannot survive.

我们一边耗尽自然资源，一边产生化学污染物。如果继续这样做的话，地球上的生物将难以生存。

Protecting the environment is every man's responsibility.

保护环境是每一个人的责任。

If everyone could make a big contribution to environmental protection, our home will become much more beautiful.

如果每个人为环境保护作出一点贡献，我们的家园会变得更加美丽。

Protecting the environment, everyone's duty.

保护环境，人人有责。

Save the world, save our lives.

拯救地球，拯救我们自己。

Pollution is no solution.

污染即永远。

We are the world.

我们即世界。

Save our world, save our future.

保护环境，保护未来。

The hearts of love, at the foot of mercy. 心中有情，脚下留情。

Green life, accompanied by environmental protection. 绿色生活，环保相伴。

Beautify life, purify the soul. 美化生活，净化心灵。

Let the birds have a blue sky. 让鸟儿拥有蓝天。

环保利民，节约先行。 Environmental protection benefits the people and saves the first.

欣赏荒野，回归自然。 Enjoy the wilderness and return to nature.

保护自然界，关爱家园。 Protect the nature and care for home.

热爱生活，骑乐无穷。 Love life, enjoy riding.

但存方寸地，留与子孙耕。 But keep fangcunde and stay with the child.

明智的使用资源。 Use resources judiciously.

尽量废物回收利用。 Recycle whenever possible.

种植更多的树。 Plant more trees.

这些宣传语涵盖了保护地球和资源的多个方面，从环境保护的重要性到个人责任，再到具体的行动建议。希望这些标语能对你有所帮助。