explanation: He dramatically expanded the system of national parks and national forests. After 1906, he moved to the left, attacking big business, proposing a welfare state, and supporting labor unions. ... Roosevelt mediated the Russo-Japanese War (1904–1905), for which he won the 1906 Nobel Peace Prize.
The main reason why this was the case is because Industrialization was an incredibly new phenomenon, and very few people could have predicted just how bad it was for the environment and for people's health.
