High temperatures, strong winds and months of dry weather are creating severe conditions in various parts of the world. Over 400 fires are burning in western Canada, and more than 100 fires are burning in the United States (Vancouver Sun, August 8, 2018; Reuters, August 11, 2018). Much of the state of California has been ablaze for weeks, with 18 fires currently burning. Nearly a million homes are at high or very high risk of destruction from fire (LocalSYR.com, August 13, 2018)! The Mendocino fire, the largest in California’s history, has already burned over 450 square miles (MSN, August 8, 2018). Homeowners insurance rates are expected to rise drastically as a result of the fires.
On the other side of the globe, the state of New South Wales in southeast Australia is engulfed in drought. The government is now allowing farmers to shoot kangaroos who vie with cattle over limited pasture land (Deutsche Welle, August 8, 2018). Australia’s prime minister recently made the sobering observation, “Now we are the land of drought.” Australian farmers and ranchers expect major crop failures and even cattle deaths. Wild fires are also ravaging Greece and other European nations, bringing devastation and death (The Guardian, August 12, 2018).
While some blame “global warming,” others see these weather extremes as part of predictable weather cycles. However, Bible prophecies provide additional insights. Jesus Christ warned that as we approach the end of the age, we should expect to see “famines, pestilences, and earthquakes in various places” and said these dramatic events are just “the beginning of sorrows” (Matthew 24:7–8). Long ago, God warned that Israelite-descended nations at the end of the age (such as Australia, Canada and the U.S.) would experience serious drought and related consequences due to their sins and rejection of Him (Deuteronomy 28:17, 23, 38). The Bible does far more than tell us these sobering circumstances are a foretaste of what is to come—it also explains why these disasters are coming. The current drought-related events we are watching are sobering, but the Bible helps us understand both “why” and “what is next.” To learn more about this timely topic, read or listen to Fourteen Signs Announcing Christ’s Return, or go online to read or listen to Who Controls the Weather?
Early Warning Signs of Global Warming: Droughts and Fires
Warmer global temperatures are expected to cause an intensification of the hydrologic cycle, with increased evaporation over both land and water. The higher evaporation rates will lead to greater drying of soils and vegetation, especially during the warm season. Climate models also project changes in the distribution and timing of rainfall. The combination of a decrease in summer rainfall and increased evaporation will lead to more severe and longer-lasting droughts in some areas. Increasing drought frequency has the potential to affect land-based natural and managed ecosystems, coastal systems, and both freshwater quality and quantity. Increasing drought frequency also has the potential to increase the likelihood of wildfires.
Predicted changes in the regional distribution of precipitation are uncertain, primarily because the scale of most climate models is too coarse to resolve important hydrologic processes such as the formation and distribution of clouds and storms. Nevertheless, model projections suggest increased vulnerability to drought for certain areas (Kattenberg et al., 1996). Simulations using higher atmospheric CO2 levels generally predict drier summers at northern high latitudes (e.g., Gregory et al., 1997). In these regions, less winter precipitation falling as snow and warmer temperatures leads to an earlier drying of soils in the spring, increasing the likelihood of drought. Other areas strongly affected by snow, such as mountainous watersheds, will be similarly affected. An increase in the ratio of rain to snow, accelerated spring snowmelt, and a shorter snow season will lead to more rapid, earlier, and greater spring runoff but reduced summer flow.
The observed climate trends over the last century have been dominated by increasing precipitation, rather than by drier conditions (see Downpours, Heavy Snowfalls, and Flooding). Some regional decreases in precipitation have been observed, notably in parts of Africa, the Caribbean, and tropical Asia (IPCC, 1998, Appendix A). There is presently no evidence for an increase in the frequency of droughts in North America over the past century, in part because the severe droughts of the 1930 s dominate the historical record (Karl et al., 1996). Studies of past drought variability in the US Great Plains, however, indicate the potential for more severe and frequent droughts in the future (Laird et al., 1996; Woodhouse and Overpeck, 1998), and human-induced warming may exacerbate this natural variability.
The environmental and ecological consequences of the summer 1999 drought in the eastern United States provide examples of situations that may become more frequent as climate changes. Without freshwater to rinse out rivers and streams, salt water encroached further up rivers in many areas of the mid-Atlantic coast (USGS, 1999). The high salt content threatened water supplies in cities that depend on freshwater from rivers and prevented farmers in some areas from irrigating their crops. Decreased freshwater runoff also led to increased salinity and low oxygen conditions in Chesapeake Bay, causing fish kills and other ecological changes. As future sea level rise shifts the saltwater-freshwater boundary farther inland, droughts will exacerbate the geographic extent and impacts of saltwater encroachment into coastal aquifers.
Susceptibility to wildfires increases during periods of drought. During 1997-98, the strong El Niño was associated with extremely dry conditions and large forest fires in many areas of the world, including Indonesia, eastern Russia, Brazil, Central America, and Florida. Although “slash-and-burn” land clearing methods and accidents triggered many of the fires, the severe drought conditions allowed them to spread out of control. Droughts have been relatively frequent since the late 1970s in some areas where drought usually accompanies El Niño events (e.g., north-east Australia) (Nicholls et al., 1996). This presumably reflects the relatively frequent El Niño events during this period. A new study suggests that climate change may produce a quasi-permanent/stable El Niño-like condition in the Pacific basin, interrupted by more extreme cold (La Nina) events (Timmerman et al., 1999). If the frequency of strong El Niños increases, the frequency and severity of droughts and forest fires may also increase, with potentially devastating effects on ecosystems if the increased fire frequency prevents the regeneration of certain species and ecosystems.
Gregory, J.M., J.F.B. Mitchell, and A.J. Brady, 1997. Summer drought in northern midlatitudes in a time-dependent CO2 climate experiment. Journal of Climate 10, 662-686.
IPCC, 1998. The Regional Impacts of Climate Change: An Assessment of Vulnerability, (Eds RT Watson, MC Zinyowera, RH Moss), Cambridge University Press, Cambridge, UK.
Karl, T. R, R.W. Knight, D.R. Easterling, and R.G. Quayle, 1996. Indices of climate change for the United States. Bulletin of the American Meteorological Society 77 (2), 279-292.
Kattenberg, A., F. Giorgi, H. Grassl, G. A. Meehl, J. F. B. Mitchell, R. J. Stouffer, T. Tokioka, A. J. Weaver, and T. M.L. Wigley, 1996. Climate models – projections of future climate, in Climate Change 1995: The Science of Climate Change, 285-357, (Eds J. T. Houghton, L. G. M. Filho, B. A. Callander, N. Harris, A. Kattenberg, and K. Maskell) Cambridge University Press, Cambridge, UK.
Laird, K. R., S. C. Fritz, K. A. Maasch, and B. F. Cumming, 1996. Greater drought intensity and frequency before AD 1200 in the Northern Great Plains, USA. Nature 384, 552-554.
Nicholls, N., G.V. Gruza, J. Jouzel, T.R. Karl, L.A. Ogallo, and D.E. Parker, 1996. Observed climate variability and change, in Climate Change 1995: The Science of Climate Change, (Eds J.T. Houghton, L.G.M. Filho, B.A. Callander, N. Harris, A. Kattenberg, and K. Maskell), 133-192, Cambridge University Press, Cambridge, UK.
Timmerman, A.J. Oberhuber, A. Bacher, M. Esch, M. Latif and E. Roeckner, 1999. Increased El Nino frequency in a climate model forced by future greenhouse warming. Nature 398, 694-696.
USGS, 1999. 1999 Summer drought may become century s worst Mid Atlantic region experiencing most dramatic effects. News Release, U.S. Geological Survey. 2 August 1999.
Woodhouse, C.A. and J.T. Overpeck, 1998. 2000 years of drought variability in the central United States. Bulletin of the American Meteorological Society 79 (12), 2693-2714.