Sentence examples for methane levels from inspiring English sources

The decline in methane levels reversed 5,000 years ago, coinciding with the advent of irrigation rice farming.

All agree that, after a plume, methane levels fall rapidly within a few months.

But Mr. Rella is puzzled by elevated methane levels that appear elsewhere.

"We were surprised to see these enhanced methane levels at these high latitudes.

He said they all knew methane levels in the mine were high.

Nasa's Curiosity rover has measured spikes in methane levels near the surface, but whether the gas is emanating from rocks or subterranean Martian bugs is unknown.

Global methane levels on the rise again Source: Environmental News Network After eight years of near-zero growth in atmospheric methane concentrations, levels have again started to rise.

Ten years later, Nasa's Curiosity rover recorded spikes in methane levels on the Martian surface, pointing to localised sources of the gas.

Both sides also acknowledge that neither theory explains why since around 2006, methane levels have again been on the rise.

The team found that during the period when methane levels stabilized in the atmosphere, ethane levels dropped.

To differentiate between these two processes, the ExoMars trace gas detector will not only analyse methane levels in more detail than any previous mission but also study other gases that will provide information about its likely source.