People look at pictures on display during a photo exhibition on climate change in Danish capital Copenhagen on Dec. 6, 2009. The United Nations Climate Change Conference 2009 will open in Copenhagen on Monday. 

　　People look at a picture on display during a photo exhibition on climate change in Danish capital Copenhagen on Dec. 6, 2009. The United Nations Climate Change Conference 2009 will open in Copenhagen on Monday.

　　People look at pictures on display during a photo exhibition on climate change in Danish capital Copenhagen, on Dec. 6, 2009. The United Nations Climate Change Conference 2009 will open in Copenhagen on Monday.

　　A photo exhibition on climate change is held outdoors in Danish capital Copenhagen on Dec. 6, 2009. The United Nations Climate Change Conference 2009 will open in Copenhagen on Monday.