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It’s easy to get lost in the old Moroccan medina – just as disorientating as the UN climate process, where emission-cutting goals are being bartered too

Marrakech has an ancient heart — centuries old and unafraid to show it — and it has all the ingredients needed to disorientate an outsider. You get lost, often.

Lanes in the centuries-old medina are narrow and the walls are high, making it impossible to spot a landmark and get a fix on where you are.

Ahead of the autumn statement next week (Report, 18 November), we urge the chancellor not to answer calls from oil producers in the North Sea for another round of government subsidies. Instead, Philip Hammond should put an end to the taxpayer-funded bonus for oil and gas companies and set the UK on a pathway to a more prosperous, clean energy future. If the world is to deliver on the Paris agreement on climate change, most of the known oil, gas and coal reserves must remain untapped. Yet in spite of warnings about risks of stranded assets from the governor of the Bank of England, the UK continues to promote the production of yet more oil and gas.

The tax breaks introduced by former chancellor George Osborne in 2015 and 2016 have been costly. The Office for Budget Responsibility estimates that the Treasury will hand oil and gas companies a net £4.8bn in rebates between 2015 and 2021. These tax breaks have also failed to protect jobs. Even with current subsidies, North Sea oil and gas operators expect to lay off one in six UK-based workers this year. By contrast, a recent UK Energy Research Centre study found that similarly sized renewable energy projects create 10 times more jobs than their fossil fuel counterparts.

Bangladesh and Ethiopia among 48 countries to pledge tougher carbon targets and a switch to 100% renewable energy

Some of the world’s poorest countries have pledged to dramatically cut their carbon emissions and rapidly move to 100% renewable power, as the UN climate summit in Marrakech drew to a close on Friday.

The announcement followed a final declaration by nearly 200 nations affirming their “highest political commitment” to combatting climate change, in a thinly-coded warning to the incoming US president, Donald Trump.

At COP22, the African Development Bank’s president, Akinwumi Adesina, tells of strategies to improve energy supplies and fight the impact of climate change

“We lose 5% of our potential GDP every year, and African industries cannot be competitive without access to electricity,” says Akinwumi Adesina, president of the African Development Bank. “I believe that’s why we can’t break away from reliance on exporting our raw materials – new industries will only go to where there’s power.”

He is speaking on the sidelines of the COP22 climate change conference in Marrakech, which ends on Friday.

Related: Morocco lights the way for Africa on renewable energy