Sea levels rose more than expected in 2024 | BBC News

Rising Global Sea Levels: Implications and Insights

Overview of Sea Level Rise

• NASA reports that global sea levels rose by more than expected last year, attributed to ocean warming and melting glaciers.

• The current rate of sea level rise is approximately 0.59 cm per year, exceeding the anticipated 0.43 cm per year.

Causes of Sea Level Rise

• Two main factors contribute to this rise: the accelerating rate of change and thermal expansion due to ocean warming.

• Approximately two-thirds of the rise is due to thermal expansion, with oceans absorbing about 90% of excess heat from greenhouse gases.

Consequences and Urgency

• The effects of rising sea levels are significant; 2024 was recorded as the hottest year, highlighting urgent climate issues.

• There is a pressing need for policies facilitating a transition towards a clean energy economy to mitigate greenhouse gas emissions.

International Collaboration Challenges

• Multinational collaboration is essential; however, recent U.S. policy changes under President Trump have hindered progress on climate agreements like the Paris Agreement.

• The U.S. missed an important meeting with the Intergovernmental Panel on Climate Change (IPCC), which plays a crucial role in global climate policy.

Global Leadership in Clean Energy

• China has emerged as a leader in clean energy initiatives, contrasting with previous U.S. policies under Trump.

• Despite past resistance from countries like China and India regarding coal transitions at UN conferences, there remains hope for increased leadership in clean energy efforts globally.