In real life, Apple, Google, Amazon, Facebook and many other giants at the forefront of science and technology have begun to layout the field of photovoltaic power generation. Photovoltaic has become the consistent choice of these real "Iron men" to lead mankind to the future world.
As technology advances and costs fall, renewable energy has become competitive with fossil fuels. Renewable energy will not only restore the planet's clean waters and green mountains, it will also provide people with a future in which they can reap the rewards.
At the border of Sichuan and Yunnan, a river runs by. The concrete has been poured into the last warehouse of the underground powerhouse on the left bank of Baihetan Hydropower Station, the largest hydropower project under construction in the world.
You may not know that 75 species go extinct around the world every day, three species every hour; The spring thaw began about nine days earlier than 150 years ago; Global carbon dioxide emissions remained at a record high of 33 billion tonnes last year; Global mean sea level in 2018 was 81 mm above the 1993 average...