Explaining causes, account for (much/30 percent) of the rise, be down to (a number of factors/the government), Explaining effects of the main trend, cause (concern/tensions), mean that (people must suffer/there are shortages), lead to (increased homelessness/a slump), give rise to (protests/congestion), As a consequence, (prices rose sharply), Signposting the end of the section and what you will talk about next, What should we do/should be done?, The question is (what should be done/what's causing this?), Let's turn to that now., Let's look at some possibilities.

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