How has the climate changed in the last 1000 years?
Solar and volcanic forcings have been responsible for some of the variations in Northern Hemisphere temperature over the past 1,000 years. … Changes in these forcings during the 20th century would actually have resulted in a small cooling since 1960.
Will humans survive in 2100?
A 2014 study published in Science asserts that the human population will grow to around 11 billion by 2100 and that growth will continue into the next century.