Knowledge Tree
Northern Hemisphere
Facts (15)
Sources
Comprehensive Overview on the Present State and Evolution of ... link.springer.com Aug 9, 2024 13 facts
claimThe Industrial Revolution in the eighteenth century initiated an increase in the temperature difference between the northern and southern hemispheres, driven by the melting of sea ice and snow in the northern hemisphere.
measurementData from Climate Reanalyzer and various satellites show a progressive increase in atmospheric water vapor over the Northern and Southern Hemispheres, the Tropics, and globally since the 1980s.
measurementIn the northern hemisphere, the temperature difference between the mean temperature in 1980 and the reference average temperature (1961–1990) was 0.14 °C, increasing to 0.49 °C in 2000 and 1.28 °C in 2020.
measurementIn 2022, relative humidity values over the Northern Hemisphere, Southern Hemisphere, Tropics, and Global were −1.03, 0.43, 0.32, and −0.37%rh above the 1991–2020 average, respectively.
measurementRelative humidity has generally decreased slightly in the northern and southern hemispheres and globally since 1970, while it has remained almost stable in the tropical regions.
claimGreenhouse gas emissions are higher in the northern hemisphere than in the southern hemisphere, and because these gases persist long enough to disperse globally, they influence the temperature difference between the two hemispheres.
claimHeavy precipitation events, which are a primary factor in flooding, have increased in recent times, particularly in numerous regions of the Northern Hemisphere due to human-induced climate change and the escalation of greenhouse gas emissions.
claimThe temperature increase in the Northern Hemisphere is greater than the temperature increase in the Southern Hemisphere.
measurementAccording to the HadCRUT5 data set, average temperature anomaly values for the global, northern, and southern hemispheres have shown a high increasing trend since 1970.
measurementSpecific humidity anomaly values in the northern hemisphere, southern hemisphere, tropical regions, and the world increased by 0.12, 0.06, 0.11, and 0.11 g/kg, respectively, relative to the 1991–2020 average.
measurementSpecific humidity has generally increased in the northern hemisphere, tropical regions, and globally since 1970, while it has remained stable in the southern hemisphere.
claimThe temperature increment is higher in the northern hemisphere over time due to higher greenhouse gas emissions and the melting of sea ice and snow.
claimGreenhouse gas emissions are higher in the northern hemisphere than in the southern hemisphere, and because these gases persist for long periods, they spread across both hemispheres, influencing the temperature difference between them.
Misleading U.S. Department of Energy climate report chooses bias ... science.feedback.org Aug 5, 2025 1 fact
claimThe 'greening of the planet' is a well-documented phenomenon that is not homogeneous, with more greening observed at high latitudes and in temperate regions of the Northern Hemisphere.
Pleiades in folklore and literature - Wikipedia en.wikipedia.org 1 fact
claimAgricultural tribes in the northern hemisphere used the course of the Pleiades to indicate the beginning and ending of growing seasons.