Climate Change ☀️
Your Weather Forecast Update: Warmer Climate Will Be The New 'Normal'
It's become so common, perhaps you've stopped noticing how often your local weather forecast is "above normal." It's during extreme heat in the summer. It's when mild temperatures persist through the winter. It's when nights don't cool down like they used to.

But on May 4, the hotter Earth will officially become the new normal.

That's when the National Oceanic and Atmospheric Administration (NOAA) releases its once-a-decade update to "climate normals." They are the 30-year averages for temperature and precipitation that local meteorologists rely on as the baseline for their forecasts. To be sure, some updates will be miniscule. But the fastest-warming places will see a real bump in their averages that could make some forecasts seem confusing, and pose a challenge to meteorologists.

The current "normals" are from 1981-2010, based on data collected by thousands of monitoring stations around the country operated by the National Weather Service. The NOAA update will shift the time frame for those averages later, to the period from 1991 to 2020. The decade from 2011-2020 is one of the hottest on record in the U.S.


"It was a very substantial upward trend in temperature, especially along the West Coast, in the South and along the East Coast," says Mike Palecki, with NOAA's National Centers for Environmental Information.

There were exceptions; some places in the North Central part of the U.S. actually cooled a bit. But globally, the last decade ending in 2020 was the hottest decade ever recorded since 1880.
Read the full article: https://www.npr.org/2021/04/07/983224262/your-weather-forecast-update-warmer-climate-will-be-the-new-normal

Aquatic ecosystems source of half of global methane emissions
Methane emissions from aquatic ecosystems are potentially a larger source of methane than direct anthropogenic methane sources, such as agriculture or fossil fuel combustion. Aquatic ecosystems and wetlands contribute at least as much as half of the total methane emissions budget.

Direct human alterations to natural aquatic ecosystems can increase methane emissions, a new study has found.

Atmospheric methane has tripled since pre-industrial times. It traps heat far more effectively than carbon dioxide and accounts for 25% of atmospheric warming to date. And much of that methane is coming from aquatic ecosystems, with human activities contributing to the emissions levels, a new paper published in Nature Geoscience has found.
Read the full article: https://www.sciencedaily.com/releases/2021/04/210407093231.htm

Reflecting sunlight could cool the Earth's ecosystem
Researchers explored the effect of solar climate interventions on ecology. The team emphasizes that greenhouse gas emissions reduction and conservation of biodiversity and ecosystem functions must be the priority.
Read the full article: https://www.sciencedaily.com/releases/2021/04/210407174313.htm

Climate change, periodic modification of Earth’s climate brought about as a result of changes in the atmosphere as well as interactions between the atmosphere and various other geologic, chemical, biological, and geographic factors within the Earth system.

Source: Climate change - Evidence for climate change | Britannica
Climate Change is the defining issue of our time and we are at a defining moment. From shifting weather patterns that threaten food production, to rising sea levels that increase the risk of catastrophic flooding, the impacts of climate change are global in scope and unprecedented in scale. Without drastic action today, adapting to these impacts in the future will be more difficult and costly.

Source: Climate Change | United Nations