lily caprani is unicef's chief of global advocacy. ere places in the world or the problems are especially pronounced? lily: this has been the hottest summer on record and this has affected every country in the world, including the united states, in western europe. but there are some countries that have had it particularly bad. some of the countries in west and central africa that unicef has been studying and researching the temperatures of have had as many as four whole months, back to back of extremely hot days over 95 degrees fahrenheit. children who are living through extreme heat for a huge portion of the year now, but it's affecting every country in the world. john: what are the effects that we see, especially in children? what effects show up? lily: the reason unicef is worried about this, we're the u.n. children's agency. we see that children all over the world are really struggling with the extreme heat. i mean, it affects all of us. it affects older people and young people especially badly. for young children, especially very