It is necessary to have an account on Google Earth Engine (GEE), which can be registered for free through the following link: https://earthengine.google.com.

By accessing the Code Editor of GEEGoogle Earth Engine) you can initiate scripts to view and process data: 

Data in the section Tools.

You can also access the data for different territorial divisions included in the Land Cover and Use Toolkit prepared in Google Earth Engine (GEE).