Atmospheric dynamics drive most interannual U.S. droughts over the last millennium 19 August 2020

Atmospheric dynamics drive most interannual U.S. droughts over the last millennium

Analysis of the last millennium reanalysis climate reconstruction shows a clear connection between Southwest drought and La Niña sea-surface temperature patterns. However, this pattern only explains a small part of the variability associated with past U.S. droughts.

Two new indicators help track climate change 19 August 2020

Two new indicators help track climate change

Researchers highlight the significance of examining trends in large-scale weather patterns using these new indicators since they reflect near surface conditions, are key drivers of extra-tropical weather, and are important regulators of human comfort for approximately half of the world’s population.

COM Program-funded study helps improve understanding of how climate change may impact ENSO 29 July 2020

COM Program-funded study helps improve understanding of how climate change may impact ENSO

El Nino Southern Oscillation (ENSO)-driven variations in sea surface temperatures over the tropical Pacific play a major role in seasonal rainfall changes in the United States and in driving weather and climate around the world. However, little is known about how ENSO will respond to anthropogenic changes in Earth’s climate.

Study helps bridge gap between temperature response to volcanic eruptions in paleoclimate data and model simulations 22 July 2020

Study helps bridge gap between temperature response to volcanic eruptions in paleoclimate data and model simulations

The discrepancies between simulations and reconstructions obstructs our ability to gain a better understanding of climate from these natural experiments.

No consistent ENSO response to volcanic forcing over the last millennium 14 July 2020

No consistent ENSO response to volcanic forcing over the last millennium

In a recent paper published in Science, authors analyze new paleoclimate data in the form of coral samples from the Tropical Pacific. These include a consistent proxy record for variables such as sea surface temperature.

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Americans’ health, security and economic wellbeing are tied to climate and weather. Every day, we see communities grappling with environmental challenges due to unusual or extreme events related to climate and weather.