Why doesn’t winter refute global warming?


This Thanksgiving, I’m thankful for many things, and I count critical thinking skills and basic science literacy as part of that collection. Around this time of year, it’s common for people to say things like, “They don’t talk about global warming in the winter,” or “If there’s climate change, why is it snowing in Boston today?” should be, as there are probably people who believe that Greenland is good green or that it only gets warm in the desert, which is why winter weather doesn’t disprove global warming, climate change or whatever you want to call it.

Our climate is changing through a combination of natural variability and a man-made steroid on top, anthropogenic activities. The increase in greenhouse gases, changes in land cover and increasing population demand are due to changed climate This is how weather, sea levels, the water cycle, agricultural productivity, infrastructure and more are affected. Even with all that clearly established, basic science explains why we would Always It is cold even though the climate is warm.

The seasons are caused by the fact that our planet is tilted about 23.5 degrees from its axis (image above). This is reported by the Library of Congress Website, “Many people believe that the temperature changes because the Earth is closer to the Sun in the summer and further from the Sun in the winter…The Earth is farthest from the Sun in July and closest to the Sun in January !” So what’s going on? During the summer, when the Earth is tilted towards the sun, the energy is directed directly at the Earth. Energy spreads more in winter. It’s like shining a flashlight directly on a table or at an angle. The beam is wide when the flashlight is tilted (winter). The Library of Congress website further states that during the winter, “…long nights and short days do not warm the earth. That’s how we have winter!

Besides, changes in the planet’s axial tilt and the way the Earth revolves around the sun are responsible for many aspects of naturally changing climate, such as glacial periods (ice ages) and interglacial periods. Take a good look at the graph above. You can see the naturally changing cycle associated with it milankovic cycle, Now look at the carbon dioxide level (the dot in the upper right corner) in year 0 (roughly present). This is well beyond the naturally changing cycle of the past 800,000 years. This chart shows the ‘and’ aspects of climate change, not the ‘or’ aspects. In other words, natural variability occurs And Burning fossil fuels since the industrial revolution is accelerating climate change.

It is important to remember that in 2040 or 2080, when our climate may be even warmer than today, it remains winter, It’s still snowing in Boston. There will be a cold snap. The polar vortex will still be there. Even as I write these facts, the imprint of climate warming is clearly visible in winter changes. More than 200 weather stations have experienced shrinking winter cold snaps from 1970 to 2021, according to an analysis by Climate Central. Cold snaps have decreased by an average of about 6 days since 1970.

a study in the journal science found that the increased warming in the Arctic is causing more disruption to the stratospheric polar vortex, which could lead to extreme cold events similar to the ones we saw in Texas. Some scientists have also suggested that snowstorms may become more extreme due to climate change. These things seem counterintuitive to many people. The atmosphere and the Earth system are complex systems. Many things happen that do not fit our mental models. However, this does not mean that they are cheaters.

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