The #10YearChallenge, in which users post a recent photograph of themselves next to one taken 10 years ago, has taken the social networking sites by storm, with even politicians sharing their own versions.

Iranian Foreign Minister Mohammad Javad Zarif used the challenge to ridicule the similar remarks made by John Bolton, national security adviser to US President Donald Trump, over 10 years.

Zarif compared an op-ed column written by Bolton 10 years ago about whether it was time for Israel to strike regional rival, Iran, to his recent comments asking the Pentagon for its plans to do the same.

Turkish President Recep Tayyip Erdogan also figured in the social media challenge, with the official account of the ruling Justice and Development Party (AK Party) publishing an Instagram photo of him from 2009 carrying a baby girl in his arms after a speech in front of his party's parliamentary bloc.

A 2019 photo next to it shows the Turkish leader next to a schoolgirl in the same place. "President Erdogan from yesterday until today," says the caption with the post.

Israeli Prime Minister Benjamin Netanyahu also took part in the challenge by posting two pictures on Twitter, comparing the border fence between Egypt and Israel 10 years apart.

A pro-Palestinian user responded by posting maps of Palestine before the declaration of Israel's establishment in 1948 to a map from the present, showing how the Palestinian territory is drastically reduced following Israel's occupation and expansion.

Cities, protests, and dictators

Activists reacted to the "10 Year Challenge" to underline its political, economic and even environmental dimensions.

Some posted pictures of several Arab capitals from Libya, Syria, Yemen and Iraq 10 years ago before wars destroyed the cities.

A Sudanese activist posted his country's map in 2009 and compared it with the current map after the secession of South Sudan in 2011.

"I don't think there is a difference that comes close to what happened to Sudan," the activist wrote.

لا أظن هناك إختلاف ينافس الحصل في السودان 😢 pic.twitter.com/PMROuasNLF — Sabby (@bnno) January 19, 2019

For his part, an Egyptian activist published a photo of Tahrir Square during the January 25 uprising in 2011, which showed hundreds of thousands of Egyptians protesting, next to a picture of a court trial of protesters who participated in the revolution.

Egypt has been described as an "open-air prison for critics" by Amnesty International with the North Africa Campaigns Director Najia Bounaim saying that under President Abdel Fattah el-Sisi, "Egyptians … are treated as criminals simply for peacefully expressing their opinions."

Humanitarian institutions also joined in the challenge, with the International Committee of the Red Cross posting on its Twitter page two photographs of Basel, a Syrian child from Aleppo, 10 years apart.

The first photo shows a young Basel sitting on a chair, while the accompanying image, depicting a young teenager in a similar pose, has his right hand amputated.

"This is what wars challenge us to do in 10 years," the ICRC wrote.

في أقل من 10 سنوات أفقدت الحربُ باسل بيته في مدينة #حلب

وعندما تمكن أخيرًا من العودة، فقد يده اليمنى وأصيب بجراح في وجهه إثر انفجار لغم أثناء لعبه مع أصدقائه في الحي.

هذا ما تتحدانا الحروب لتفعله في 10 سنوات...#10YearChallange pic.twitter.com/eOS7SxHghL — اللجنة الدولية (@ICRC_ar) January 17, 2019

Alaa Allagta, a Palestinian cartoonist, drew two pictures of a closed bottle, representing people's protests rising up under the cork of military rule.

In Libya, an activist published a photograph of Colonel Muammar Gaddafi in 2009 wearing a military uniform, next to a picture of retired brigade General Khalifa Haftar wearing the same outfit, alluding to the latter's desire to occupy Gaddafi's place despite the 2011 revolution that toppled him.

Economy and environment

The global economy was also tackled in the 10-year challenge. A Sudanese blogger published a picture of $100 and its equivalent in Sudanese pounds in 2009 and now.

An Egyptian activist posted a bank note worth 200 Egyptian pounds in 2009, next to a photo of 20 pounds note from this year, highlighting the deterioration in its value.

Ten Year Challenge memes on climate change were also fairly popular. The SDG Academy, a UN initiative, published two photographs of the Rhone glacier in the Swiss Alps from 2008 and 2018.

"Do you know what the real 10-year challenge is? It is climate change," the account tweeted.

The real #10yearchallenge? Climate change. According to @IPCC_CH #SR15, we have just over 10 years to #ActOnClimate before we cause irreparable damage to our planet. Take our free course on #ClimateAction and become a part of the solution. Enroll now! https://t.co/puzQgIiUoQ pic.twitter.com/Ujz7kEAnoH — The SDG Academy (@SDG_Academy) January 14, 2019

Planet Love Life, an organisation dedicated to the conservation of marine life and oceans, posted two pictures of a coral reef, one healthy and brightly coloured, the second grey and dead.

"Coral reefs are dying at an alarming rate all around the globe," the organisation said on its Instagram page. "They need our help."