Warmer air is melting the top of the Greenland Ice Sheet

If you could shape an ice cube out of all the ice losses from Greenland and Antarctica over the past three decades, it would stand 20km high.

An international group of scientists who work with satellite data say the acceleration in the melting of Earth's ice sheets is now unmistakable.

They calculate the planet's frozen poles lost 7,560 billion tonnes in mass between 1992 and 2022.

Seven of the worst melting years have occurred in the past decade.

Mass loss from Greenland and Antarctica is now responsible for a quarter of all sea-level rise.

This contribution is five times what it was 30 years ago.

The latest assessment comes from the Ice Sheet Mass Balance Intercomparison Exercise, or Imbie.

PLANETARY REALIGNMENT

Once the Earth is ice-free, and probably just before, in my opinion, due to a major change in the distribution of weight on the surface of Earth, Earth, which currently has a slight wobble in its rotation on its tilted axis, (probably in part because of the ice at the poles), should shift on its axis, so that a different tilt and a greater or lesser wobble will result. This shift will probably also include a change in the rotational speed of Earth. This entire area needs further study. Research is needed to quantify the changes in the angle of tilt, the wobble and the rotational speed, as well as to determine what effects such changes will have on both earth and Humanity; for example plate tectonics, volcanology, magnetism, Earth's magnetic shield, tides, etc. in addition to daily time-keeping and the change in the length of a day.

Methane accounts for more than one-quarter of the anthropogenic radiative imbalance since the pre-industrial age. Its largest sources include both natural and human-mediated pathways: wetlands, fossil fuels (oil/gas and coal), agriculture (livestock and rice cultivation), landfills, and fires. The dominant loss of methane is through oxidation in the atmosphere via the hydroxyl radical (OH). Apart from its radiative effects, methane impacts background tropospheric ozone levels, the oxidative capacity of the atmosphere, and stratospheric water vapor. As such, changes in the abundance of atmospheric methane can have profound impacts on the future state of our climate.

NASA Space Mission Takes Stock of Carbon Dioxide Emissions by Countries

Nations have reached a historic agreement to protect the world's oceans following 10 years of negotiations.

The High Seas Treaty places 30% of the seas into protected areas by 2030, aiming to safeguard and recuperate marine nature.

The agreement was reached on Saturday evening, after 38 hours of talks, at UN headquarters in New York.

The negotiations had been held up for years over disagreements on funding and fishing rights.

The last international agreement on ocean protection was signed 40 years ago in 1982 - the UN Convention on the Law of the Sea.