- Source: CNN " data-fave-thumbnails="{"big": { "uri": "https://media.cnn.com/api/v1/images/stellar/prod/170602114543-gettyimages-498969228.jpg?q=x_0,y_71,h_1688,w_3000,c_crop/h_540,w_960" }, "small": { "uri": "https://media.cnn.com/api/v1/images/stellar/prod/170602114543-gettyimages-498969228.jpg?q=x_0,y_71,h_1688,w_3000,c_crop/h_540,w_960" } }" data-vr-video="" data-show-html="" data-byline-html
![250,000 deaths a year from climate change is a 'conservative estimate,' research says | CNN](https://cdn-ak-scissors.b.st-hatena.com/image/square/9c268967888d58ee6577572cdca1a9227b148fde/height=288;version=1;width=512/https%3A%2F%2Fmedia.cnn.com%2Fapi%2Fv1%2Fimages%2Fstellar%2Fprod%2F190115134619-india-smog-jan-2019.jpg%3Fq%3Dx_4%2Cy_145%2Ch_2079%2Cw_3696%2Cc_crop%2Fw_800)