Climate crisis worsens conflict death rates, and other nature and climate stories you need to read this week

As Africa kicks off its first Climate Summit in Nairobi from 4-6 September, research finds the climate crisis can worsen unrest in some of the continent's most fragile nations, causing more deaths and greater economic losses.

The International Monetary Fund (IMF) paper, Climate Challenges in Fragile and Conflict-Affected States, found deaths from conflict as a share of the population could increase by almost 10% in countries classified as fragile by 2060.

The climate crisis could also push an additional 50 million people in fragile states (such as Sudan and Somalia) into hunger by 2060, the paper's authors predict.

"Conflict undermines the capacity of fragile states to manage climate risks," the IMF said. "For example, in Somalia, the areas most severely affected by food insecurity and hunger due to the prolonged drought in 2021-22 were under the control of terrorist groups that thwarted delivery of humanitarian assistance."

Hurricane Idalia has the potential to become the costliest climate disaster of 2023 for the United States, according to risk analysts.

The storm, which hit the Gulf Coast of Florida on 30 August and caused millions of residents to evacuate, could cost insurers as much as $9.36 billion in insured losses, according to UBS bank estimates.

Speaking to reporters at the White House, President Joe Biden said Hurricane Idalia showed no one "can deny the impact of the climate crisis anymore".

Early reports seen by Reuters indicated the Category 3 storm has been less destructive than the Category 5 Hurricane Ian, which struck Florida in September 2022, killing 150 people and causing $112 billion in damage.

Natural disasters and extreme weather events were named by Chief Risk Officers as the second biggest risk over the next two years. Failure to mitigate climate change is the biggest risk over the next decade, according to the World Economic Forum's Global Risks Report 2023.

Rising air pollution in South Asia is now posing a major risk to life expectancy in the region, according to the latest Air Quality Life Index published by the University of Chicago's Energy Policy Institute. Air pollution can reduce life expectancy by more than five years per person in South Asia, the report finds.

Fossil fuels' share in the European Union's power mix has reached its lowest level since records began, according to a report. In the first half of this year, they accounted for just 33% of the EU's power generation, down from 38% in the same period last year, think tank Ember said.

EU securities regulator, the European Securities and Markets Authority, has highlighted the surge in cash flowing into biodiversity funds and the need for increased monitoring to prevent greenwashing.

London now has the world's largest clean air zone, as the Ultra Low Emission Zone was expanded to cover the entire city – an additional 5 million residents – despite facing strong opposition.

The Greek Prime Minister Kyriakos Mitsotakis has promised the country will be better prepared to fight wildfires in future, with drones and forest temperature sensors installed. It comes after a wildfire burning in the northeast of the country for 11 days destroyed an area larger than New York City.

German companies have expressed concerns about the energy transition, seeing it as a greater risk than an opportunity for their competitiveness, according to a survey conducted by the DIHK Chambers of Commerce and Industry.

A set of standards released by the International Sustainability Standards Board (ISSB) will set worldwide sustainability reporting requirements for decades to come, writes Sue Lloyd, ISSB Vice-Chair. The standards place more onus on companies to disclose how climate change affects their business. Now the work begins to get companies to start using them.

Blended finance can provide the catalyst to scale funding to protect nature and climate, says Akanksha Khatri, the World Economic Forum's Head of Nature and Biodiversity and Carlos Correa, Senior Fellow, Conservation International. By working in coalition, mainstreaming nature across multilateral development banks and institutionalizing blended finance for nature-positive initiatives, we can quickly scale the blended finance needed to meet global climate and biodiversity goals.

Investment in renewable energy is skyrocketing, in line with ambitious national targets aimed at curbing carbon emissions, writes James Larsen, CEO of energy storage company e-Zinc. As renewable energy capacity grows, we must identify and expand better ways of storing this energy, to avoid waste and deal with demand spikes.