Africa's 250 million nomadic herders, or pastoralists, are the invisible keystone of the continent's food system. They provide 50% of Africa's meat and 75% of its milk, moving livestock across vast rangelands in response to seasons, weather and grazing patterns that have sustained communities for millennia. Yet pastoralists are routinely dismissed as backwards, a relic in the way of progress and modernisation. Climate change, land grabs, and conflict force them off ancestral routes. Their knowledge is often ignored. But in the UN International Year of Rangelands and Pastoralists, a different story emerges - one where these herders aren't obstacles to climate solutions but pioneers of them.