Looking back on the photos I have taken in Yemen over the past year, I can't help but feel sad.
Although the situation has improved and aid is being scaled up, a horrendous amount of suffering has occurred.
I am certain that many people have died needlessly. Not only during the protests, but from hunger and disease.
This tragedy has gone largely unreported.
Despite the creation of citizen journalism and independant content, what is reported in mainstream media is what matters to donors and policy makers. So I often lobby journalists and editors to cover humanitarian issues more with some success, but many stories still go untold.
I spoke to a friend yesterday who had never heard of Cyclone Nargis - the cyclone that killed around 160,000 people in Myanmar in 2008. Although the death toll rivaled that of the Haiti earthquake, few remember the disaster because government control meant that very little information, especially images, found their way into mainstream media.
Images can make millions of dollars of difference to donations in the wake of an emergency, and disasters that don't produce compelling images often fail in the fundraising stakes. Around March, the Yemeni authorities stopped issuing visas to journalists and started to deport some of those who were still there. This meant that the humanitarian disaster that was evolving was ignored by the rest of the world.