The movement in recent American history that the quoted support is: Reducing reliance on fossil fuels.
The emission from fossil fuels is proven to increase the toxicity to the environment which makes it more acidic than it should be. Right now, many companies started to develop free emission technology such as electric cars or Solar technology.
Fairly certain the answer is Bill Clinton. If not I apologize
Economic push factors of immigration include poverty, overpopulation, and lack of jobs. These conditions were widespread in Europe during the 1800's.
The Paleolithic Era <span>or </span>Old Stone Age<span> is a period of prehistory from about 2.6 million years ago to around 10000 years ago. The </span>Neolithic Era<span> or </span>New Stone Age<span> began around 10,000 </span>BC<span> and ended between 4500 and 2000 BC in various parts of the world. In the Paleolithic era, there were more than one human species but only one survived until the Neolithic era. Paleolithic humans lived a nomadic lifestyle in small groups. They used primitive stone tools and their survival depended heavily on their environment and </span>climate<span>. Neolithic humans discovered agriculture and animal husbandry, which allowed them to settle down in one area. The Mesolithic era followed the Paleolithic era but the period of the Paleolithic—Mesolithic boundary varies by </span>geography<span> by as much as several thousand years.</span>
