When I got a news alert around 6 p.m, I was investigating my missing book mystery. My life is always full of mysteries. I’de been searching for 2 missing books in my workplace for 4 days and I just found them in a random room that I hand’t gotten in this week. It was 7 in the evening. I was working late and pretty tired. And of course very upset about the fact that the books are in that room. Why? How is it possible? It feels like I got fooled by somebody. I was very puzzled at that moment and at that exact moment I read the news alarm on my phone screen. Seoul Mayor Park Won-soon reported missing! He cancelled all of his schedule today and left his house in the morning. He was wearing dark-colored clothes and a backpack. He left a message to his daughter and turned off his phone. Around 5 in the evening his daughter called 112 and reported that he was missing. Police officers, drones, helicopters are searching him around the area but he hasn’t been found yet. This new...
For the first four months of this year the US produced more energy from renewable sources than coal. It’s for the first time in over 135 years. (Then what source produced the most energy 135 years ago? Wood!) Nobody has expected this day would come so soon. A decade ago, nearly 50% of the nation’s energy was provided by coal. It was the major source of the nation’s energy production. What was the other half? The other half of the energy resources included natural gas, wind, solar, hydroelectric dams, and geothermal. These renewable resources were comparably expensive than the cost of coal so people didn’t use them much. What has caused this transformation (coal to renewables) in the energy industry? It has been mostly driven by the decline of the cost of renewable energy. It has gotten much cheaper to produce electricity from renewable resources than from coal. So many plants use renewable sources to produce electricity. The cost of building power plants th...