CNN 10 April 23, 2021

    April 22nd was Earth Day, and America hosted a virtual Climate Summit on 22nd and 23rd.  America announced that they will reduce greenhouse gas emissions by 50% compared to 2005. 

    E-skin is a wearable health care monitoring system invented by a Japanese researcher. It's a very thin material with an LED display that can be attached to human skin with water. It can transmit the heartbeat to a nearby smartphone and also receive simple characters.

    A floating hotel is planned to be built. It'll not only generate its own electricity but also collect and reuse rainwater and food waste. What's more, the hotel will spin 360 degrees in 24 hours. It is estimated to be built by 2025.

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