Fillin each blank in the passage with the correct word

Fill in each blank in the passage with the correct word / phrase from the box:
energy use ; sea levels ; endangered species ; alternative sources ; carbon footprint ; greenhouse gases ; climate change ; carbon emissions
Why is global warming a problem? High levels of (1) ........ in the atmosphere lead to (2) ....... The oceans and seas are getting warmer and the polar ice caps are melting. This causes the rise in (3) ........, which threatens low coastal regions and islands. Furthermore, the weather is becoming more unpredictable with with severe storms and floods or unexpected droughts. Another effect of global warming is a rise in the number of (4) ....... Many animals and plants could become extinct if their natural habitats are changed.
What can we do about it? Scientists now agree that there is an urgent need to cut (5) ........ across the world. Moreover, we need to develop (6) ....... of energy, such as wind, wave or solar power. For individuals, being a vegetarian reduces your (7) ....... (the amount of emissions caused one person's lifestyle) because it can reduce (8) .........