A co sie stalo z uzywaniem 'the' - cos zapominasz o tym...
Global warming 'consist' (cos z tym slowem nie tak) that temperature 'rise' RISES 'gradual' (nie to slowo-gradually) and 'relate' (nie wiem czy to najlepsze slowo-moze impacts) ON all countries in the world. The most threatened are THE islands, but 'country' (tutaj l. mn), (albo (A Country) 'which lies on the islands' (cos tu ze sensem tego nie tak) are the least responsible for THE production OF greenhouse gases 'to' IN THE atmosphere.
Firstly, A temperature rise leadS to 'that' (niepotr)(nie uzywaj leads to, lepiej ..results in the fact that) glaciers are melting, which will (ultimately) increase 'rivers and sea level'. That might lead to floods and people 'will must' (to sa 2 modale, nie uzywamy razem, lepiej uzyj ..will need) to emigrate to other areaS. Additionally THERE will by less farm-area and that will cause shortage of food and OF water.
Secondly, global warming poseS a threat to some species OF animals, which
IT can wipe out in the future, for example THE polar bear. Greenhouse effect
shortenS 'a' (niepotr) hunting time. That will probably LEAD TO less diversity in nature.
Next THE result can 'be more' LEAD TO natural disasterS, for example: droughts,
torrential rains, hurricanes, forest fires. In fact WITH 'this disaster' (this disaster czy these disasters) 'completely will' (zla kol slow...will) disappear natural ecosystems like coral reefs, tropical forests. Heat waves will certainly cause sunstrokes, 'That is' WHICH ARE 'the' (niepotr) most dangerous for elderly and sick people. But THERE will definitely BE milder winters and people won't 'be' (niepotr) die of cold.
Last but not least WITH THE change THERE will be less interest IN holidays in THE tropics, because everywhere will 'be' HAVE a higher temperature.
To sum up, global warming will lead to miLlions of deaths through
natural disasters. AS you see, it could have disastrous consequences,
that's why we must prevent emission OF THE greenhouse gases for example
through preservation of nature and 'ride' RIDING a bike instead of 'drive' DRIVING a car.