How does pollution affect a giraffes habitat?

It affects there neck length, and when it is to long the giraffes head gets to heavy and the long neck cant support it. The girrafes then collapse and they cant get up. this is a very sad ending for these lovely creatures as the are ofter eaten alive by lions while they are defenceless. It also affects their habitats because when the pollution finds it's way to their habitats they will eat it as an alterative resource from their normal diet.