In Carbon Island, as a facility that affects the island's income, the bus station can also be called a bus stop. This station needs to be upgraded according to the island level. Many people may not even notice this and never upgrade it. To help everyone understand how to upgrade the Carbon Island bus station, the following will provide a guide on upgrading the station. After reading, you will know how to upgrade it.

When it comes to upgrading, the method is quite simple; just meet five conditions. Once completed, click on the station, and an upgrade icon will appear. Clicking on this icon will complete the upgrade. Now, let's look at these five conditions. The first condition is to accumulate enough gold coins.

The requirement for gold coins is not high, so it's easy to meet this condition. The second condition is to increase the population. There's not much to say about this condition because it's highly prioritized and will naturally be met without special attention.

As for the third condition, it involves emission reduction tasks. These tasks need to be done specifically since they refresh daily at a fixed rate, requiring some time to complete. The fourth condition, similar to the population one, is the upgrade of the average technology level, which can be achieved naturally as the game progresses.

The last condition is to prepare materials. There's not much to explain here; it's the first condition players usually meet, as preparing materials is necessary for any upgrade or action. Players are likely accustomed to this already.

The above content introduces how to upgrade the Carbon Island bus station. After reading the introduction above, I believe everyone now understands how to upgrade the bus station. Knowing these several conditions should resolve most issues, and you can then follow the instructions to upgrade the station level.