There is not enough food, and consequently on the other hand people are dying.
Advertising is so powerful that it causes/affects people to buy things they don't want. In addition/However, it can help them make the right choice when they buy things.
In general/On the whole people have more access to education than fifty years ago.
Supermarkets are very convenient because you can buy almost everything you want. On the other side/hand, they are putting small shops out of business.
The north of the country is much richer compared with/to the south.