The temperature will rise unless we save energy., A lot of fish will die unless we stop polluting the sea., We will waste a lot of water unless we give up having long showers., Air pollution will get worse unless we use public transport and walk more., We will have a lot of leftovers unless we cook the right amount of food., There will be fewer and fewer trees unless we reuse paper more often., Our landfills will be full soon unless we throw away less., It is very difficult for the dolphins to live in the sea unless humans change their habits. ,

Unless

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