Seriously. Thanks to global warming and the subsequent thaw of Siberian tundra, Russia is increasing its exports of mammoth ivory:

The trade, given a lift recently by global warming, which has melted away the tundra and exposed more frozen remains, is not only legal but actually endorsed by conservationists. They note somewhat grudgingly that while the survival of elephants may be in question, it is already too late for mammoths. Mammoth ivory from Siberia, they say, meets some of the Asian demand for illegal elephant ivory, and its trade should be encouraged.

[...]

While mammoth tusks may not be as valuable as Russia’s deposits of oil and natural gas, they are plentiful. The Siberian permafrost blankets millions of square miles, ranging in depth from a few feet to more than a mile and resembling frozen spinach.

Hidden in one of the upper layers of this mass, corresponding to the Pleistocene Epoch, are the remains of an estimated 150 million mammoths. Some are frozen whole, as if in suspended animation, others in bits and pieces of bone, tusk, tissue and wool.

Woolly mammoths are actually the last of three extinct elephantine species that inhabited Siberia. They appeared about 400,000 years ago and lasted at least until 3,600 years ago — the age of some mammoth remains found on an island off the northern coast of the Russian region of Chukotka in 1993.

The tusks emerge with the spring thaw or after heavy rains, or along the eroding banks of rivers. A boom in gas and oil investment has added another source, as crews dig wells and pipeline ditches. Fresh from the permafrost, mammoth ivory is nearly pristine, though with a characteristic green patina. But if left outside and exposed to the elements, it will disintegrate within three years into worthless splinters.