Over recent decades, has the globe been warming or cooling?
Despite some short-term fluctuations in climate change, the overall trend shows that the Earth is warming. While there may be some pockets of cooling in particular locations, the global average temperature has been rising steadily over the past several decades.
Over the last 10,000 years, has the globe been warming or cooling?
Over the past 10,000 years, the Earth’s climate change has generally been relatively stable and warm, with some fluctuations. However, the overall temperature trend over this period has been towards slightly cooler temperatures, primarily due to changes in the Earth’s orbit and axial tilt.
Over the last 100,000 years, has the globe been warming or cooling?
Over the course of the past 100,000 years, the Earth’s climate has been both warming and cooling. The changes have been mainly driven by natural causes such as changes in solar radiation, volcanic activity, and variations in the Earth’s orbit and axis. The Earth has also gone through several ice ages. However, in the past several thousand years, the Earth’s climate has generally been relatively stable and warm, with any fluctuations related to natural causes.
And even earlier?
According to https://www.climate.gov/ global temperatures have been much higher in the past than we are experiencing now.
“…the planet has often been much warmer than it is now. One of the warmest times was between 600 and 800 million years ago. Conditions were also frequently sweltering between 500 million and 250 million years ago. And within the last 100 million years, two major heat spikes occurred: the Cretaceous Hot Greenhouse (about 92 million years ago), and the Paleocene-Eocene Thermal Maximum (about 56 million years ago).”
The earth’s temperature has been changing constantly over long periods of time. If you take a selective ‘snapshot’ of an incredibly short period of time (in comparison to the life of the earth) you would be correct in saying that there is evidence of global warming. But, no self-respecting, scientist would claim that a few decades of data (mere milliseconds in the life of the earth) could be used to predict an overall trend and even more, be used to predict a future climate catastrophe – But a politician can.