Is the earth's temperature increasing?
       | 
      
         
        Is the globe warmer today?
       | 
    
    
      
         
        Have recent years been warmer than past years?
       | 
      
         
        Is there a difference in temperature trends for the
        northern and southern hemispheres?
       | 
    
    
      
         
        Is there a difference in temperature trends for ocean
        and land?
       | 
      
         
        How does temperature vary with altitude? How should
        temperature vary according to the greenhouse theory?
       | 
    
    
      
         
        Has the temperature increased in England?
       | 
      
         
        Is US temperature changing?
       | 
    
    
      
         
        Is an increase in CO2 concentration correlated
        to an increase in temperature? Is Dust concentration correlated
        to temperature?
       | 
      
         
        Are changes in the sun causing global warming?
       | 
    
    
      
         
        How does the earth's surface temperature vary?
       | 
      
	   How does atmospheric dust affect climate change?
	    |