(CNN) -- Sometimes it takes just one. One person-- one idea -- to ignite a movement that changes lives. Helping the millions of people who've fled the war in Syria may seem a challenge far too big for small relief efforts. The U.N. calls it the worst humanitarian crisis in a generation. The needs are staggering. And yet, for some people, it's just not an option to do nothing. I AM NOT A TOURIST Tanya Khalil says she refuses to be a neutral observer. Her country, Lebanon, is taking in more Syrian refugees than any other -- nearly 1 million at last official count -- despite its tiny size.
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Small, grassroots relief efforts help Syrian refugees survive a harsh winter.
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The Lebanese group "I AM NOT A TOURIST" collected thousands of "bags of love" in Beirut.
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Australians united to collect 100,000 "Sweaters for Syria" in Perth.
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You can make an impact for Syrian refugees. Go to CNN.com/impact for large and small ways to help.
Unlike other host countries, @placeholder has no formal refugee camps.