In the second excerpt President Roosevelt contrast nature bounty with the good mankind He emphasized the need of conserving and safeguarding the nation's natural resources for the benefit of current and future generations, connecting nature's abundance most directly to the threat the country faces.
What is the justification in details?
He described the abundance of natural resources found in the nation, such as timber, water, and land, as "nature's bounty." However, when he spoke of the "goods of mankind," he was referring to the goods and services created by human labor, like factories, transportation networks, and machinery. President Roosevelt made a more direct connection between the nation's danger and the abundance of nature.
He maintained that the nation's natural resources were being dangerously exploited and depleted, endangering the welfare of the people. He emphasized that the careless use of natural resources has resulted in deforestation, soil erosion, and water pollution, all of which might have detrimental long-term effects on the environment and the economy of the nation.