Groundwater levels over time
Protracted groundwater depletion in California after drought – could 2016-17 be worse?

Many people were counting on the strong El Niño this winter to produce surplus water to recharge the groundwater and make up for what’s been pumped out due to the severe drought. However, a new study found that the groundwater level in California’s Central Valley has continued to decline even when drought has recovered.

Small island nations will become more arid
Small island nations face drier conditions by mid-century

Future changes in freshwater availability are a major concern in the context of climate change. New research finds that overall changes to island freshwater balance will shift towards greater aridity for over 73% of 80 globally distributed island groups identified, impacting 16 million people by mid-century.

Arctic temperature anomalies
The warmest January and February in the Arctic

Right from the beginning of 2016 new records were set in the Arctic: warmest air temperature on record in both January and February, and the lowest sea ice cover in February. This year’s record high temperature and low sea ice cover increases concerns about what will happen next in the Arctic and globally under a changing climate.  

Global ocean carbon sink
Detection of anthropogenic ocean carbon sink emerges by mid-century

The ocean carbon sink is a cumulative net sink of anthropogenic carbon from the atmosphere, having absorbed 41% of all emissions due to fossil fuel and cement manufacturing. New research by McKinley et al. uses a climate model to estimate when growth of the carbon sink could be detected from the noise of the natural variability.

Arctic ice schematic
Role of Oceanic Heat in Sea Ice Loss in the New Arctic

The fate of sea ice in the Arctic Ocean in the coming years and decades is dependant upon our understanding of the complex ocean–ice–air interactions and feedbacks to the system. A new paper by Carmack et al. identifies the critical processes, key questions, and required elements for a research agenda to study this new Arctic environment. 

AMOC circulation
The AMOC: its role in climate and its mechanisms of variability

The Atlantic Meridional Overturning Circulation (AMOC), a large-scale circulation pattern in the Atlantic, plays a central role in climate through its heat and freshwater transports. New research proposes monitoring a specific region that may enable scientists to better predict AMOC variability and future climate.

Welcome to the US Climate Variability and Predictability Program

Submit ocean science priority ideas for the next Presidency

ocean buoy deployment

The Consortium for Ocean Leadership, American Geophysical Union, and US CLIVAR are seeking input from a wide audience of ocean stakeholders and scientists to help inform future ocean science priorities in the next Administration. If you would like to contribute to the recommendations, now is the time to do so. Please submit your requests in the form of broad themes or goals, followed by a few specific actions to accomplish them, by May 13.

Call for US CLIVAR-sponsored workshops

workshop room

Requests are now being accepted for US CLIVAR-sponsored workshops. Community workshops are used to coordinate, develop, plan, and implement new or focused activities for the benefit of the scientific community and relevant to the goals of US CLIVAR. The deadline for submission is May 6.

Apply to attend Forecasting ENSO Impacts on Marine Ecosystems of the US West Coast

Bait ball

Participants are invited to attend this workshop to help develop a framework for using ENSO forecasts to predict changes in marine ecosystems off of the US West Coast, which shows large imprints of ENSO on biological processes. Due to the limited size of the workshop, participants must apply by May 2. 

Submit a white paper for the Decadal Survey for Earth Science and Applications from Space


The National Academies is conducting the 2017-2027 Decadal Survey for Earth Science and Applications from Space and is requesting a second round of community white papers to inform the Survey. This request for information builds upon the initial set of white papers submitted last year (responses available on the website). The purpose of this second set of papers is to provide ideas for specific science and applications targets under the following five themes: (i) Global Hydrological Cycles and Water Resources, (ii) Weather and Air Quality: Minutes to Subseasonal, (iii) Marine and Terrestrial Ecosystems and Natural Resource Management, (iv) Climate Variability and Change: Seasonal to Centennial, and (v) Earth Surface and Interior: Dynamics and Hazards. White papers are due April 30.

Comments sought for white paper on translating process understanding to improve climate models


Comments are sought on a draft white paper based upon the October 2015 US CLIVAR workshop, Translating Process Understanding to Improve Climate Models. The white paper is intended to summarize questionnaire responses, workshop presentations, discussions, and recommendations to inform both the broad research community and agency considerations on the need for a coordinated effort to translate process understanding into climate model improvements over the next decade. Comments on the current draft are due by April 29.

2016 Variations Winter Edition: The Intra-Americas Seas and its role in climate and extreme events

Variations winter 2016

The Intra-Americas Seas (IAS) plays a vital role in climate variations of the surrounding North American continental region. And yet, the IAS is one of the most poorly observed ocean regions of the world and one where almost all climate models display large bias. This collection of articles highlights the value of sustained and expanded monitoring, research into mechanisms influencing variability, and modeling to advance predictions that will underpin the development of usable climate information to address societal needs in the region.