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Global environment is in crisis.
地球环境日益恶劣。

Acid rain, radiation, water pollution and heavy metal contamination are all over the place.
酸雨、辐射、水污染、声污染、空气污染、重金属污染层出不穷。

This widespread degradation is impacting the Earth's delicate ecosystem.
地球生态环境正遭受着不可逆的破坏。

When the day comes that the Earth is no longer fit for human survival,
当有一天地球已不再适宜人类生存

What do we do?
我们该何去何从？

Mankind was born on Earth, and it was never meant to die here.
人类生于地球，但绝不应该在这里灭亡。

If the Earth becomes uninhabitable,
某一天地球不再适合人类居住时，

we may need to establish life on other planets.
生命的曙光将在别的星球点亮。

Earth-like planets, such as Mars,
许多适于星际航行的类地行星，比如火星，

can serve as destination for space migration.
就可以作为太空移居的目标行星。

However, before settlement, we need to address challenges presented by the inhospitable environment.
但在移居之前，我们仍需要对其进行改造。

So, Terraforming is necessary.
实现火星地球化。

The Martian surface is predominantly covered in bare rocks.
火星的表面大多被裸岩覆盖。

One of the most important steps in terraforming is to convert bare rocks into soil.
火星地球化最重要的一步，就是实现裸岩到土壤转化。

But，how？
但，怎么做呢？

Our team proposes B.HOME
我们团队设想开发 B.HOME

Biofilm Harnessing for Offworld Mankind Establishment, inspired by lichens, to transform Martian barren rocks into soil.
一种模拟地衣功能，适应火星环境，促进裸岩转化为土壤的生态菌膜。

The ecological biofilm utilizes symbiotic system.
菌膜利用共生系统。

Autotrophic cyanobacteria provide organic matters.
自养的蓝细菌负责固氮和固碳提供大肠杆菌代谢所需的氧气和有机物。

Modified E. coli
改造之后的大肠杆菌，用于模拟地衣中的真菌

secretes chemical weathering agents for erosion and exhibits robust resistance against harsh environment on Mars.
分泌有机酸腐蚀岩石碎屑，并表达使菌膜适应火星严苛环境和促进菌膜功能建立的的相应元件。