Naturally, climate changes all the time. But the problem is that the world is getting warmer, so very rapidly, too fast for lives on earth to adapt. A rapidly warming world does not necessarily mean we should be seeing more sunny days in Wales. It means that ice caps are melting faster, increasing the amount of water in the ocean, flooding land space we need for living and producing our food, more living things are cramming in smaller land space, poverty and inequality will rise, more chance of new diseases (oh an irony!). Back in the ocean, more water does not mean more sea food!, Chemical component of the sea will change, the sea will become warmer, more acidic, changes happen so rapidly, sea lives cannot keep up quick enough to survive and maintain their population, it means less food for us ultimately. The effects are perpetual and interconnected.
We (you and I) might not immediately feel the impact when an ice cap melts, but the impact on us is surely on its way. In some part of the world, people have already seen and suffered that direct impact first hand, with more severe drought, and extreme flooding events.