Critical analysis: is subjective writing because it expresses the writer’s opinion or evaluation of a text.Writing a critical paper requires two steps: critical reading and critical writing (http://www2.southeastern.edu/Academics/Faculty/elejeune/critique.htm)
Discourse community: collection of people or groups that work towards a common goal through communication (http://genreacrossborders.org/gxb-glossary/discourse-community)
Knowledge: awareness, understanding, or information that has been obtained by experience or study.(Cambridge Dictionary)
Evidence: the available body of facts or information indicating whether a belief or proposition is true or valid. (http://www.oxforddictionaries.com/us/definition/american_english/evidence)
Context: the parts of something written or spoken that immediately precede and follow a word or passage and clarify its meaning. (http://www.oxforddictionaries.com/us/definition/american_english/context)
This article form the University of Harvard how Climate Change is a threat for different species that are adjusted to live in a certain range of temperature. In this article the author talks about how scientists are predicting a big extinction caused by Climate Change.
I have improve my understanding in Context with this article since the author first talks about a change in temperature and then he process to explain it.