How many countries have signed the kyoto protocol?

The Kyoto Protocol to the United Nations Framework Convention on Climate Change is an additional protocol adopted on 11 December 1997 to form the United Nations Framework Convention on Climate Change (UNFCCC) of climate protection. The agreement, which entered into force on 16 February 2005, establishes for the first time legally binding targets for the emission of greenhouse gases in industrialized countries, which are the main cause of global warming. By early December 2011, 191 states and the European Union  had signed and ratified the Kyoto Protocol. The US rejected the ratification of the protocol in 2001, and Canada announced its withdrawal from the agreement on December 13.

when studying cause and effect, historians usually group the causes into different categories. for example, cultural causes reflect how a society’s literature and art convey the way the society saw itself in relation to the rest of the world. another resource that historians use to understand society is pop culture, which tells them the trends and ideas that are preferred by the common people. when studying cause and effect, it’s important to remember multiple causation, or the idea that an effect could have several causes and vice versa.  

the correct option is “cultural causes” since art and literature are related to the culture of a place. culture is determined by literature, art, music.

the correct option is “pop culture” since it reflects the likes and ideas of common people whereas the rest of the options do not focus on common people.  

the correct option is “multiple causation” since it refers to the idea that events are caused by multiple reasons, not just a single one.