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		| Paper: | 
		A World of Change: Climate Yesterday, Today, and Tomorrow | 
	 
	
		| Volume: | 
		443, Earth and Space Science: Making Connections in Education and Public Outreach | 
	 
	
		| Page: | 
		26 | 
	 
	
		| Authors: | 
		Solomon, S. | 
	 
	
	
		| Abstract: | 
		In this talk, key evidence for changes in the Earth’s climate, and the 
 causes of those changes, will be summarized. Understanding how temperatures 
 are increasing around the world, how ice is melting at the poles, and how rain
 is changing in the tropics, are among the issues that will be addressed. 
 Observations of the greenhouse gases and aerosols that are the main reasons 
 for these changes will also be discussed. The talk will also cover how our 
 choices will combine with the physics of the climate system to determine how 
 different the climate will be by 2020, 2050, 2100, and beyond. | 
	 
	
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