Decarbonisation Delays Threaten Net Zero Ambitions, IPCC Chief Warns
The head of the Intergovernmental Panel on Climate Change (IPCC), Professor Jim Skea, cautioned that delaying decarbonisation initiatives could lead to intensified global warming by the middle of this century. Such delays would make achieving the ambitious net-zero targets by 2050 increasingly challenging.
Progress and Hurdles in the UK
While the UK and several other nations have legally committed to achieving net zero emissions by 2050, the path to this goal remains contentious. The UK has made significant strides in decarbonising its power sector, now sourcing over 40% of its electricity from renewables. However, measures that demand personal investments, such as transitioning to green vehicles or retrofitting homes, have seen resistance.
Recent Policy Shifts
UK Prime Minister Rishi Sunak’s recent policy announcements, including delaying the ban on new petrol and diesel vehicles and supporting the Rosebank oil and gas field development, have raised eyebrows. These decisions seem at odds with the country’s commitment to the 2050 net-zero target.
The Importance of the Journey to Net Zero
Emphasizing the significance of the journey rather than just the endpoint, Professor Skea said, “The path by which you get to net zero matters.” Accumulative carbon emissions over time play a critical role in determining global warming levels.
Global Temperature Concerns
Reports from the World Meteorological Organisation suggest that the annual global average temperature could exceed preindustrial levels by at least 1.5C within this decade. The Paris Agreement’s goal is to prevent the Earth’s temperature from surpassing this threshold. However, consistent temperatures above this mark over two decades would signify a failure to meet this commitment.
Risks and Action
Highlighting the escalating risks, Professor Skea noted, “The risks of climate change accelerate beyond 1.5C towards 2C.” Despite these risks, he emphasized the unequivocal need for proactive climate action.
Future of the IPCC
When asked about the future role of the IPCC, Professor Skea expressed that the complexities of climate change ensure that the IPCC’s work will remain relevant. He concluded, “We will always need new knowledge.”
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